When to use 'will', 'shall', 'would' and 'should'. Will have or would have?
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When to use 'will', 'shall', 'would' and 'should'. Will have or would have?
Shall and will are both modal verbs primarily used to express the future tense.
Shall currently tends to be falling out of use, but it continues to be used
with I and we for offers and suggestions.
Should is the conditional form of shall.
Would is the conditional form of will.
Will have or would have?
- We use the perfective will have when we are looking back from a point in time when something will have happened.
Ex: I will phone at six o’clock. He will have got home by then.
- or looking "back" from the present:
Ex: Look at the time. The match will have started.
- We use would have as the past tense form of will have:
Ex: I phoned at six o’clock. I knew he would have got home by then.
- We use would have in past conditionals to talk about something that did not happen:
Ex: He would have been very angry if he had seen you.