1. TIME CLAUSES and IF

2. Part of a sentence introduced by a time conjunction:
A clause is :
Part of a sentence!
A time clause is:
An IF-clause is:
Part of a sentence introduced by a time conjunction:
Part of a sentence introduced by IF!
when, as soon as, until, after, before, while
29/01/2009
New Headway, Unit 9

3. No Future Tense in Time Clause !
To talk about future…
No Future Tense in Time Clause !
Use Present in a clause with:
when, as soon as, until, after, before, while
When I get home, I’ll phone you!
Time clause=present
29/01/2009
New Headway, Unit 9

4. No Future Tense in IF - Clause !
Use Present or Past in an IF-clause:
Present = First Conditional
Past = Second Conditional
If it rains, we’ll stay at home
If I had a million dollars,
I would build a swimming-pool.
IF- clause=present, Main clause= will
IF- clause=past, Main clause=would
29/01/2009
New Headway, Unit 9

5. IF or WHEN? We use if for something that we think might happen
If you hear any news, can you ring me immediately?
(You might hear some news)
When you hear some news, can you ring me immediately?
(You will hear some news for sure)
I’ll probably go for a walk later on if it stays fine
(It might stay fine)
I’ll make myself an omelette when I get home tonight.
(I will get home tonight)
We use if for something that we think might happen
We use when for something that we know will happen.
29/01/2009
New Headway, Unit 9

6. ______________________, I’ll tell him the news.
A: Look at the information in brackets and complete the sentences using if or when and a verb in the present simple.
(I may see Tom tonight)
______________________, I’ll tell him the news.
2.(Marylin is coming soon)
______________________, can you let her in, please?
3.(The alarm will ring soon)
______________________, we’ll all have to leave the building.
4.(I might feel better tomorrow)
______________________, I’ll probably go back to work.
5.(This film finishes at ten)
______________________, I’ll stop the video.
6.(The plan may not work)
______________________, we’ll have to think of something else.
If I see Tom tonight
When Marylin comes
When the alarm rings
If I feel better tomorrow
When the film finishes
If the plan doesn’t work
29/01/2009
New Headway, Unit 9

7. ___________ I become President… ___________ it gets dark…
B: If or When?
___________ I become President…
___________ it gets dark…
___________ the film finishes
___________ she passes her exam
___________ it doesn’t rain tomorrow
___________ I wake up tomorrow If
When
When If If
When
29/01/2009
New Headway, Unit 9

8. say ‘ll scream ‘ll be manages come ‘ll cook ‘ll need go ‘ll miss move
C: Choose the correct tense (present or will)
If you (say) ___________ that again I (scream) ___________
I (be) _________ surprised if she ( manage) _________ to sell that car.
If the boys (come) _________ for supper I (cook) __________ chicken.
I (need) ___________ some money if we (go) ___________ out tonight.
I (miss) ___________ you if we (move) ___________ to Wales.
If you (wash) ___________ up, I (dry) ___________ .
Ann (be) ___________ sorry if Kate (not come) ___________ .
If you (look) ___________ in the top drawer, you (find) ___________ your passport.
say
‘ll scream
‘ll be
manages
come
‘ll cook
‘ll need go
‘ll miss
move
wash
‘ll dry
‘ll be
doesn’t come
look
‘ll find
29/01/2009
New Headway, Unit 9