English verb conjugation WOULD HAPPEN

Regular verb: happen - happened - happened


Affirmation

Simple form

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it would happen
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V-ing form

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it would be happening
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Perfect

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it would have happened
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V-ing perfect

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it would have been happening
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Negation

Simple form

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it would not happen
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V-ing form

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it would not be happening
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Perfect

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it would not have happened
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V-ing perfect

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it would not have been happening
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Interrogative form

Simple form

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would it happen?
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V-ing form

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would it be happening?
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Perfect

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would it have happened?
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V-ing perfect

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would it have been happening?
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Interro-negative form

Simple form

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would it not happen?
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V-ing form

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would it not be happening?
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Perfect

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would it not have happened?
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V-ing perfect

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would it not have been happening?
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