Conditionals
Since she doesn't have enough experience, she can't find a job.
COULD
If she had enough experience, she could find a job.
I'll bring some sandwiches in case we ... (not/find) anywhere decent to eat.
I'll bring some sandwiches if case we don't find anywhere decent to eat.
If he rings, tell him to come at 3.00.
SHOULD (paraphrase)
Should he ring, tell him to come at 3.00.
This time next week I ... (not/learn) for the exam.
This time next week I will not be learning for the exam.
Please, wait for a moment and I'll look for this drug for you.
WILL (paraphrase)
If you will wait for a moment, I'll look for this drug for you. -> wll/would can be used to show willingness
There is no doubt that he will pass his exams.
BOUND (paraphrase)
He is bound to pass his exams.
If she ... (not/perform) those tests prophylactically, she ...(not/know) about her condition.
If she hadn't performed those tests prophylactically, she wouldn't know about her condition.
She won't have finished her treatment ... (BY/UNTIL) August.
BY/BEFORE - positive sentences
UNTIL - negative sentences
If I had been you, I wouldn't have agreed on this operation.
IN (paraphrase)
If I had been in your shoes, I wouldn't have agreed on this operation.
The conference ... (begin) at 10 am. Refreshments ... (be) available from 11.30 onwards.
The conference will begin at 10 am. Refreshments ... will be available from 11.30 onwards.
We use will rather than be going to to talk about future events that have been previously arranged in some detail.