Page 545 - Practical English Usage 3ed - Michael Swan, Oxford

Sentences like these can also be constructed without should. Subjunctives cannot be used.
It's surprising that she says/said that sort of thing to you. (BUT NOT ft!s S f t r p t ' i s i n g ~hat m e s e w . . . )
I was shocked that she didn't invite Phyllis.
For should in ((-clauses, see 261.1; after In case, see 271.2; after /est, see 321; after so tllat and ill
order titat, see 543.
522 since: tenses
1 main clause: I've known her since . ..
In sentences with since (referring to time), we normally use present perfect and past perfect tenses in the main clause.
I've brown her since 1980. (NOT .' IetttJftJ fIeF sinee ...)
We haven't seen Jamie since Christmas.
I was sorry when Jacky moved to America; we had been good friends since
university days.
However, present and past tenses are also occasionally found, especially in sentences about changes.
You're looking much better since your operation.
She doesn't come round to see us so much since her marriage. SInce last Sunday I can't stop thinking about you.
Things weren't going so well since Father's illness.
2 It's a long time since ...
In British English, present and past tenses are common in the structure It islwas ... since . ..
It's a long time since the last meeting.
It was ages since that wonderful holiday.
American English prefers perfect tenses in this structure.
It's been a long time since the last meeting.
It had been ages since that wonderful vacation.
3 since-clause: since we were at school
Since can be used as a conjunction of time, introducing its own clause. The tense in the since-clause can be perfect or past, depending on the meaning. Compare:
- - -
I've Icnown her since we were at school together. I've known her since I've lived in this street.
You've drunk about ten cups of tea since you arrived.
You've drunk about ten cups of tea since you've been sitting here. We visit my parents every week since we bought the car.
We visit my parents every week since we've had the car.
For more about present perfect tenses, including American usage, see 455-460. For past pedect tenses, see 423-425.
For the differences between since, for and from, see 20B.
For sillce meaning 'as' or 'because', see 72.
since: tenses 522
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