Where do we use since or for?

We use for with a period of time in the past, present or future. We use since with a point in time in the past. For refers to periods of time, e.g. 3 years, 4 hours, ages, a long time, months, years. They’ve lived in Oxford since 2004.

Do we use since and for in future perfect continuous?

We use the future perfect continuous to show that something will continue up until a particular event or time in the future. “For five minutes,” “for two weeks,” and “since Friday” are all durations which can be used with the future perfect continuous.

In which tense do we use since?

Roger Woodham replies: Since is used in a variety of different ways, both with the present perfect and with other tenses. When it is used as a preposition to introduce a date or a specific time in the past, it is normally used with present perfect and past perfect tenses.

Can we use since in present continuous tense?

When do we use “since” and “for” in present perfect or present perfect continuous tense? – Quora. Since and for is used for both perfect present and perfect present continuous. USAGE : Since = from (an exact point in time) until now.

Can we use since for future?

Since can refer to a point after a specific time or event in the past. When using since, we normally use present perfect and past perfect tenses in the main clause of the sentence. You wouldn’t use since when you are talking about the future because, by definition, since refers to specific point in the past.

What is the difference between future perfect tense and future perfect continuous tense?

Fortunately there’s a simple way to remember the difference between these two tenses. The future perfect describes an action that will end in the future. The future continuous describes an action that will continue in the future.

What’s the difference between past perfect and past perfect continuous?

We use the past perfect simple with action verbs to emphasise the completion of an event. We use the past perfect continuous to show that an event or action in the past was still continuing. Past perfect continuous emphasises a continuing or ongoing action.

What is the present perfect continuous tense with for and since?

Present perfect continuous with FOR and SINCE. HOW LONG? The question words how long? and since when?, and the prepositions for and since are used with the present perfect continuous tense to express events that started in the past and are still in progress in the present.

What tense do you use after since in a sentence?

In all sentences of this type you must use the Present Perfect tense in the main clause. However, the rule that you use the Past tense after “since” is flexible. Sometimes we can use the Present Perfect here as well.

What is present perfect continuous action continuing now?

Present Perfect Continuous for past action continuing now. We use the Present Perfect Continuous tense to talk about action that started in the past and is continuing now. This is often used with for or since.

What is the difference between how long and since?

How long? and for refer to an incomplete period of time, while since when? and since refer to a point in time: I’ve been waiting for you for ages. He has been living here since last week. “How long have you been learning Spanish?”