Tabla de conjugación del verbo "To happen"
Present Simple (Presente Simple)
Negative
He/She/It doesn't happen.
Present Simple Continuous (Presente Continuo)
Negative
He/She/It isn't happenning.
Past Simple (Pasado Simple)
Past Continuous (Pasado Continuo)
Affirmative
He/She/It was happenning.
Negative
He/She/It wasn't happenning.
Interrogative
Was he/she/it happenning?
Future Simple (Futuro Simple)
Present Perfect Simple (Presente Perfecto)
Negative
He/She/It hasn't happenned.
Present Perfect Continuous (Presente Perfecto Continuo)
Affirmative
He/She/It's been happenning.
Negative
I haven't been happenning.
You haven't been happenning.
We haven't been happenning.
He/She/It hasn't been happenning.
You haven't been happenning.
They haven't been happenning.
Interrogative
Have you been happenning?
Has he/she/it been happenning?
Have you been happenning?
Have they been happenning?
Past Perfect Simple (Pasado Perfecto)
Negative
He/She/It hadn't happenned.
Past Perfect Continuous (Pasado Perfecto Continuo)
Affirmative
He/She/It'd been happenning.
Negative
I hadn't been happenning.
You hadn't been happenning.
We hadn't been happenning.
He/She/It hadn't been happenning.
You hadn't been happenning.
They hadn't been happenning.
Interrogative
Had he/she/it been happenning?
Had they been happenning?
Future Perfect (Futuro Perfecto)
Affirmative
He/She/It'll have happenned.
Negative
You won't have happenned.
He/She/It won't have happenned.
You won't have happenned.
They won't have happenned.
Interrogative
Will he/she/it have happenned?
Will they have happenned?
Conditional (Condicional)
Negative
He/She/It wouldn't happen.
Conditional Perfect (Condicional Perfecto)
Affirmative
He/She/It'd have happenned.
Negative
I wouldn't have happenned.
You wouldn't have happenned.
We wouldn't have happenned.
He/She/It wouldn't have happenned.
You wouldn't have happenned.
They wouldn't have happenned.
Interrogative
Would you have happenned?
Would he/she/it have happenned?
Would you have happenned?
Would they have happenned?