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Content tagged with "FOR"

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Future perfect continuous for continuous events in the future

continuous
duration
future
perfect
point in time
FOR
WILL

The future perfect continuous tense is used to express events that will start before a point in time in the future (or have already started) and will still be in progress at that point:

By tomorrow, it will have been raining for four days.
Soon, he'll have been running for 4 hours.

Future perfect with FOR

duration
future
perfect
period of time
FOR
WILL

The preposition for is used with the future perfect tense to express that something will start before a point in time in the future (or has already started) and that it will still be true at that point:

Past perfect with FOR

duration
past
perfect
period of time
FOR

The preposition for is used with the past perfect tense to express that something started before a point in time in the past and was still true at that point:

When they got married, they had already been together for three years.

Past simple for actions happening over a period of time in the past

past
period of time
simple
FOR

The past simple is used for actions that took place over a complete period of time in the past. This period is expressed with a time expression; however, the exact time may or may not be mentioned:

Present perfect continuous with FOR and SINCE

continuous
duration
perfect
point in time
present
FOR
HOW LONG?
SINCE

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.

Present perfect with FOR and SINCE

duration
perfect
period of time
point in time
present
FOR
HOW LONG?
SINCE

The question words how long? and since when?, and the prepositions for and since are used with the present perfect tense to express that something started in the past and is still true.