English verb conjugation TO HAPPEN

Regular verb: happen - happened - happened

Indicative

Present

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it happens
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-
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Present continuous

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it is happening
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-
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Preterite

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it happened
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-
-

Preterite continuous

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it was happening
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-

Present perfect

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it has happened
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-
-

Present perfect continuous

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it has been happening
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-
-

Pluperfect

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it had happened
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-

Pluperfect continuous

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it had been happening
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-

Future

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it will happen
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Future continuous

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it will be happening
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-

Future perfect

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it will have happened
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-

Future perfect continuous

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it will have been happening
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Conditional

Present

-
-
it would happen
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-
-

Present continuous

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it would be happening
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-
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Past

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-
it would have happened
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-
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Past continuous

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-
it would have been happening
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-
-

Imperative

Imperative

-
Let's happen
-

 
 
 

Infinitive

Infinitive

to happen

 
 
 

Participle

Present

happening

Past

happened