Present perfect with since, for, how long. Past simple with when

Как вы уже заметили, since и for часто употребляются в предложениях с Present Perfect Continuous. Мы используем since для указания момента начала действия:

– She has been watching TV since early morning.

– They have been travelling since last Monday.

For употребляется для указания всего периода времени:

– He has been working in that firm for two months.

– It has been raining for 3 hours.

– They have been agruing about that for more than an hour.

Но с выражениями: all day, all morning, all week, all my life. НИКОГДА НЕ УПОТРЕБЛЯЕТСЯ for.

– It has been raining all day long.

– She has been training all week long.

Используйте Present perfect, чтобы спросить или сказать, как долго что-то происходит. Помните структуру How long is it since…?:

– It’s two years since I saw your flat.

– It’s ages since we visited this place.

– How long has it been raining?

– It’s been raining since one o’clock.

Обратите внимание, что с when всегда употребляется Past Indefinite Tense, не зависимо от того, спрашиваете ли вы что-либо или говорите:

– When did he come home?

– When did you see this film?

– He was preparing for his report, when the telephone rang.

– When I entered the room I saw my mother sitting in the armchair.

Помните конструкцию How long is it since?

– It’s two years since I saw your flat.

– It’s ages since we visited this place.



Present perfect with since, for, how long. Past simple with when