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Modal : no | may | might | can | could | shall | should | will | would | must | ought to

English verb conjugation SHALL HAPPEN

Regular verb: happen - happened - happened


Affirmation

Simple form
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it'll happen
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V-ing form
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it'll be happening
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Perfect
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it'll have happened
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V-ing perfect
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it'll have been happening
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Negation

Simple form
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it shan't happen
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V-ing form
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it shan't be happening
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Perfect
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it shan't have happened
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V-ing perfect
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it shan't have been happening
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Interrogative form

Simple form
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shall it happen?
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V-ing form
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shall it be happening?
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Perfect
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shall it have happened?
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V-ing perfect
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shall it have been happening?
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Interro-negative form

Simple form
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shan't it happen?
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V-ing form
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shan't it be happening?
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Perfect
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shan't it have happened?
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V-ing perfect
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shan't it have been happening?
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