English verb conjugation TO HAPPEN
Regular verb: happen - happened - happened
Indicative
Present
-
-
it do
es not happen
-
-
-
Present continuous
-
-
it
is not happen
ing-
-
-
Preterite
-
-
it did not happen
-
-
-
Preterite continuous
-
-
it
was not happen
ing-
-
-
Present perfect
-
-
it
has not happen
ed-
-
-
Present perfect continuous
-
-
it
has not
been happen
ing-
-
-
Pluperfect
-
-
it had not happen
ed-
-
-
Pluperfect continuous
-
-
it
had not been happen
ing-
-
-
Future
-
-
it will not happen
-
-
-
Future continuous
-
-
it will not
be happen
ing-
-
-
Future perfect
-
-
it will not
have happen
ed-
-
-
Future perfect continuous
-
-
it will not
have been happen
ing-
-
-
Conditional
Present
-
-
it would not happen
-
-
-
Present continuous
-
-
it would not
be happen
ing-
-
-
Past
-
-
it would not
have happen
ed-
-
-
Past continuous
-
-
it would not
have been happen
ing-
-
-
Imperative
Imperative
-
Let's not happen
-
Infinitive
Participle