Indicative
Present Indefinite
I happen
you happen
he/she/it happens
we happen
you happen
they happen
Present Continuous
I am happening
you are happening
he/she/it is happening
we are happening
you are happening
they are happening
Present Perfect
I have happened
you have happened
he/she/it has happened
we have happened
you have happened
they have happened
Present Perfect Continuous
I have been happening
you have been happening
he/she/it has been happening
we have been happening
you have been happening
they have been happening
Past Indefinite
I happened
you happened
he/she/it happened
we happened
you happened
they happened
Past Continuous
I was happening
you were happening
he/she/it was happening
we were happening
you were happening
they were happening
Past Perfect
I had happened
you had happened
he/she/it had happened
we had happened
you had happened
they had happened
Past Perfect Continuous
I had been happening
you had been happening
he/she/it had been happening
we had been happening
you had been happening
they had been happening
Future Indefinite
I will happen
you will happen
he/she/it will happen
we will happen
you will happen
they will happen
Future Continuous
I will be happening
you will be happening
he/she/it will be happening
we will be happening
you will be happening
they will be happening
Future Perfect
I will have happened
you will have happened
he/she/it will have happened
we will have happened
you will have happened
they will have happened
Future Perfect Continuous
I will have been happening
you will have been happening
he/she/it will have been happening
we will have been happening
you will have been happening
they will have been happening
Conditional
Conditional Present
I would happen
you would happen
he/she/it would happen
we would happen
you would happen
they would happen
Conditional Present Continuous
I would be happening
you would be happening
he/she/it would be happening
we would be happening
you would be happening
they would be happening
Conditional Perfect
I would have happened
you would have happened
he/she/it would have happened
we would have happened
you would have happened
they would have happened
Conditional Perfect Continuous
I would have been happening
you would have been happening
he/she/it would have been happening
we would have been happening
you would have been happening
they would have been happening