English verb conjugation TO HAPPEN

Regular verb: happen - happened - happened

Indicative

Present

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it does not happen
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-
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Present continuous

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it is not happening
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-
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Preterite

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-
it did not happen
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-
-

Preterite continuous

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it was not happening
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-
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Present perfect

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it has not happened
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-
-

Present perfect continuous

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it has not been happening
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-
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Pluperfect

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-
it had not happened
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-

Pluperfect continuous

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it had not been happening
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-
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Future

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it will not happen
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-

Future continuous

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it will not be happening
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-
-

Future perfect

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it will not have happened
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Future perfect continuous

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it will not have been happening
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-
-

Conditional

Present

-
-
it would not happen
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-
-

Present continuous

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it would not be happening
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-
-

Past

-
-
it would not have happened
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-
-

Past continuous

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-
it would not have been happening
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-
-

Imperative

Imperative

-
Let's not happen
-

 
 
 

Infinitive

Infinitive

to happen

 
 
 

Participle

Present

happening

Past

happened