English verb conjugation TO HAPPEN

Regular verb: happen - happened - happened

Indicative

Present

-
-
it does not happen
-
-
-

Present continuous

-
-
it is not happening
-
-
-

Preterite

-
-
it did not happen
-
-
-

Preterite continuous

-
-
it was not happening
-
-
-

Present perfect

-
-
it has not happened
-
-
-

Present perfect continuous

-
-
it has not been happening
-
-
-

Pluperfect

-
-
it had not happened
-
-
-

Pluperfect continuous

-
-
it had not been happening
-
-
-

Future

-
-
it will not happen
-
-
-

Future continuous

-
-
it will not be happening
-
-
-

Future perfect

-
-
it will not have happened
-
-
-

Future perfect continuous

-
-
it will not have been happening
-
-
-

Present

-
-
it would not happen
-
-
-

Present continuous

-
-
it would not be happening
-
-
-

Past

-
-
it would not have happened
-
-
-

Past continuous

-
-
it would not have been happening
-
-
-

-
Let's not happen
-

to happen

Present

happening

Past

happened