Grammar · Lesson 11

First conditional an open condition and its result

Build a useful response before the future is settled: If the rain starts, we’ll move check-in inside. If the side door is open, volunteers can use it. If the boxes arrive early, put them in storage.

50–60 min coreif · when · unlesscondition · result · speaker framing15–20 min listening and retrieval

NoticeSeparate an unsettled condition from the response it activates.

DiscoverFind future reference in a present-form condition clause.

BuildControl clause order, result types, when, and unless.

UseGive a fictional contingency briefing and answer follow-ups.

Can-do: By the end, you can state an open future condition, choose a prediction, plan, possibility, permission, or instruction as its result, order and punctuate both clauses, distinguish if from expected-time when, and use unless for an exception.

Two-minute retrieval

Three checks from earlier lessons

Use the stated time, subject, and sentence purpose.

1The coordinator makes a neutral prediction about tomorrow: The weather report says it rain tomorrow.

2The singular subject inspection takes third-person present agreement: The inspection at eight.

3Give a direct instruction about the boxes: the boxes into storage.

Notice one event plan with different results

Riverside workshop contingency board

Open weather condition: If the rain starts before nine, we’ll move check-in inside.

Permission: If the side door is open, volunteers can use it.

Instruction: If the boxes arrive early, put them in storage.

Expected scheduled event: When the coordinator arrives at eight, she’ll open the office.

Exception: Unless the inspection runs late, the doors will open at nine.

Which clauses name a condition or time situation? Which clauses give its result?
Does every result use will?
Which marker leaves the event open, which presents it as expected, and which means “except if”?

Discovery check: identify the clause’s job

1The team does not know whether rain will begin before nine: If the rain starts before nine names an .

2The team’s planned response to that weather is we’ll move check-in inside, a .

3Volunteers can use it tells what becomes allowed if the door is open, so the result gives .

4Put them in storage tells the listener what to do after an early arrival, so the result gives an .

5The schedule treats the coordinator’s eight o’clock arrival as part of the expected timeline: the when clause names an .

6Unless the inspection runs late means the doors open except in one case, so it names an .

Get to the root: one situation activates another

A first conditional presents a future condition as open and relevant. The speaker does not commit to whether it will happen. The result says what becomes true, possible, permitted, planned, or necessary if that condition is met.

clause	job	example
condition	states the situation that activates the result	if the rain starts
result	states the consequence or response	we’ll move check-in inside

An open condition is not automatically unlikely, and the first conditional does not promise that its result is objectively “likely.” It shows the speaker’s chosen connection between a possible condition and its consequence. Evidence and context determine probability.

Build the core future pattern without a false absolute

In the core pattern, use a present form in the future condition clause and will / won’t + base verb for a predicted or planned result.

order	form and punctuation	example
condition first	If + present, will + base; add a comma after the first clause	If it rains, we’ll move inside.
result first	Will + base + if + present; normally no comma in this short pattern	We’ll move inside if it rains.
question about the result	question order in the result; present order after if	What will we do if it rains?

The two orders keep the same basic condition-result relationship, but they can change information flow and emphasis. Condition-first order sets the situation before the response. Result-first order can foreground the response.

Do not put will in the condition clause merely to mark future time: say If it rains, we’ll move inside, not If it will rain, we’ll move inside. English can use will after if for special meanings such as willingness, but that is not the future marker taught in this A2 pattern.

Drill 1: complete the core form

1The rain condition has future reference but uses present agreement: If the rain , we’ll move check-in inside.

2The singular inspection keeps third-person present agreement after if: If the inspection late, the doors will open at ten.

3The team’s planned response uses will + base verb: If the rain starts, check-in inside.

4The negative condition refers to a key that may fail to arrive: If the key , call the coordinator.

5Ask about the future result, then keep present order in the if clause: What we do if the rain starts?

6The result comes first, so the short final condition normally has no comma: The office will open at eight if the coordinator on time.

Choose a result that matches the speaker’s purpose

The result clause is not limited to will. Choose the form that expresses the response you mean.

result purpose	form	example
prediction or plan	will / won’t	If it rains, we’ll move inside.
weaker possibility	may / might	If traffic is heavy, the driver might arrive late.
permission or available possibility	can	If the side door is open, volunteers can use it.
instruction or advice	imperative	If the key doesn’t arrive, call the coordinator.

Drill 2: choose the result purpose

1The board states the team’s planned response: If the rain begins, check-in inside.

2The delay is possible but not the coordinator’s firm prediction: If traffic is heavy, the driver late.

3The open side door makes this route available to volunteers: If the side door is open, volunteers it.

4The result is a direct instruction to the listener: If the key doesn’t arrive, the coordinator.

5The notice warns about the consequence of a late inspection: The doors at nine if the inspection runs late.

6Ask the listener to choose a response to the open condition: What if the delivery is late?

Frame the future with if, when, or unless

marker	speaker’s framing	example
if	leaves the condition open	If the rain starts, we’ll move inside.
when	presents the time event as expected	When the coordinator arrives, she’ll open the office.
unless	means “except if” or, in the core pattern, “if not”	Unless the inspection runs late, we’ll open at nine.

When shows the speaker’s expectation; it does not guarantee the event in the real world. The same future can be framed differently: When the delivery arrives, we’ll unload it treats arrival as expected, while If the delivery arrives by eight, we’ll unload it before opening leaves the deadline condition open.

In this A2 pattern, unless the inspection runs late equals if the inspection does not run late. Do not add another negative when making that replacement: not unless the inspection doesn’t run late for the same meaning. Like if and future when, unless uses a present form rather than will merely to mark future time.

Drill 3: choose the marker and framing

1The team does not know whether the rain will begin before nine: the rain begins before nine, we’ll move check-in inside.

2The published schedule presents the coordinator’s eight o’clock arrival as expected: the coordinator arrives at eight, she’ll open the office.

3The doors open at nine except if the inspection runs late: the inspection runs late, the doors will open at nine.

4Replace unless the inspection runs late without changing its core meaning: , the doors will open at nine.

5The arrival is future, but the expected-time clause uses present agreement: When the driver , we’ll unload the boxes.

6The condition clause comes first, so place a after it before writing the result.

Sound natural: make the condition and response one path

With the condition first, use two connected thought groups and a small boundary before the response: If it RAINS | we’ll move INside. With the result first, the sentence often flows through the final condition without a full pause: We’ll move INside if it RAINS.

In connected U.S. speech, if you often links as /ɪf jə/, and we’ll is one short syllable, often /wil/ or a lighter /wəl/. Keep the main condition and result words clear. Stress if only for contrast or correction: IF the rain starts corrects an assumption that rain is certain. Unless keeps stress on its second syllable: /ənˈlɛs/.

Listen: how does the speaker frame the path?

Your teacher reads each fictional workshop line once naturally and once more slowly. Listen for the marker, the condition’s status, and the result purpose. Check your answer before discussing the line with your tutor.

Tutor-read listening check

1. How does Clip 1 frame the rain?

2. What does when communicate in Clip 2?

3. What can prevent the nine o’clock opening in Clip 3?

4. What planned result follows the condition in Clip 4?

5. What does might contribute in Clip 5?

6. What instruction does Clip 6 give?

Read the 7:45 contingency update

Message to the Riverside workshop team

The inspection is on schedule. Unless it runs late, the doors will open at nine. When the coordinator arrives at eight, she’ll check the office key. If the key doesn’t arrive with her, call the building manager. The forecast is still uncertain. If the rain begins before nine, we’ll move check-in inside. If traffic is heavy, the delivery driver might arrive after opening, but volunteers can start setup if the side door is unlocked.

Reading check: use only the update

1. What can prevent the doors from opening at nine?

2. Which event does the writer present as expected?

3. What is the team’s plan if rain begins before nine?

4. Why does the update use might arrive for the driver?

Build a contingency and an instruction

Drill 4: build the condition first

The nine o’clock opening depends on the inspection ending on time.

Drill 5: build the imperative result first

Tell the volunteer what to do if the key fails to arrive.

Notice and repair three different errors

Drill 6: future reference without future will

The plan says: If it will rain, we’ll move inside. Tap the unnecessary future marker.

Drill 7: avoid the unintended double negative

The writer intends “if the inspection does not run late”: Unless the inspection doesn’t run late, we’ll open at nine. Tap the word that reverses the intended exception.

Drill 8: keep present agreement

The instruction says: If the delivery arrive early, put the boxes in storage. Tap the verb with missing agreement.

Oral transforms: preserve the condition-result relationship

Say each complete new sentence before revealing it. Keep the stated framing and purpose.

1 If it rains, we’ll move inside. Put the result first.

We’ll move inside if it rains.

2 The side door may be open. Then volunteers have permission to use it.

If the side door is open, volunteers can use it.

3 The key may not arrive. Give the listener an instruction.

If the key doesn’t arrive, call the coordinator.

4 The inspection normally ends on time. A late inspection is the exception to opening at nine. Use unless.

Unless the inspection runs late, we’ll open at nine.

5 The scheduled coordinator arrival is expected. Use when.

When the coordinator arrives, she’ll open the office.

6 Heavy traffic creates only a possible delay. Use might.

If traffic is heavy, the driver might arrive late.

Play and practice

Games and a short reading that recycle this lesson. Use them as a warm-up, a fast finisher, or homework. Each one checks itself.

Read

If the storm comes on Thursday

Read once for meaning. Then read again and do the tasks below.

Message from an office manager113 wordsAbout 1 min

Hi all, the weather service says a big storm may arrive on Thursday afternoon. Here is our plan. If the storm starts before lunch, we’ll close the office at 1:00. If the trains stop, you can work from home on Friday. Please take your laptop home on Wednesday night.

When the building manager calls me on Thursday morning, I’ll send everyone an update. Unless the power goes out, the online meeting at 3:00 will happen as usual. If you need a ride home, ask Daniel. He has a big car and lives near the station.

If the weather is fine on Friday, we might have lunch together on the roof. Stay safe! Helen

Find it

Tap the 6 verbs inside the if, when, and unless clauses (the condition side, not the result).

Check your understanding

1. What will happen if the storm starts before lunch?

2. Who should people ask if they need a ride home?

3. What might happen on Friday if the weather is fine?

Match up

Condition and result

Tap an item on the left, then its partner on the right.

Condition

Result

Unscramble

Build the condition and the result

Tap the words in order to build the sentence. Tap a placed word to send it back.

1. Start with If. Promise a phone call.
2. Start with the result. Put the condition at the end.
3. Ask about the result. Put the if-clause at the end.
4. Start with Unless (except if).
5. Start with If. End with an instruction.

Sort it

What does the result do?

Look at the result clause. What does it do? Tap each sentence, then tap its box.

Communicate: brief a fictional contingency team

You never need to disclose your real work, school, home, location, schedule, travel, health, finances, family, relationships, safety plans, passwords, weather risks, or future plans. Use the Riverside workshop, invent a neutral public event, or share personal information only when you freely choose.

Ask before briefing: Ask two What will you do if...? questions about fictional delays or changes. Give one firm plan and one weaker possible result with might.

Final production: give a 45–60 second fictional contingency briefing. Include two open if conditions, one expected when event, one unless exception, one planned result, one weaker possibility, one permission, and one instruction. Use condition-first and result-first order at least once each.

Reframe one event: Present the same arrival first with when because the schedule treats it as expected, then with if...by because meeting a deadline remains open. Explain how the speaker’s framing changes.

Final check

Four decisions with one defensible target

1. Which sentence uses the core first-conditional form for this open weather contingency?

2. Which sentence gives a direct instruction activated by a possible missing key?

3. Which sentence means “We’ll open at nine if the inspection does not run late”?

4. The published schedule treats the coordinator’s arrival as expected. Which sentence matches that framing?

Reflect and retrieve

Explain the decision path without looking back

What does the condition activate? Why is the condition open rather than automatically unlikely? Which result forms can follow it? How do if, expected-time when, and exception marker unless frame the future differently?

Return tomorrow before rereading. Complete the five-minute next-day retrieval, then revisit only the condition form, result purpose, marker, clause order, punctuation, or spoken boundary that still feels slow.

Next-day retrieval

Choose from memory before looking back

1The rain condition is future but remains open: If the rain , we’ll move inside.

2The doors open at nine except if the inspection runs late: the inspection runs late, we’ll open at nine.

3Heavy traffic creates only a weaker possible delay: If traffic is heavy, the driver late.