English verb conjugation COULD LAUGH

Regular verb: laugh - laughed - laughed


Affirmation

Simple form

I could laugh
you could laugh
he could laugh
we could laugh
you could laugh
they could laugh

V-ing form

I could be laughing
you could be laughing
he could be laughing
we could be laughing
you could be laughing
they could be laughing

Perfect

I could have laughed
you could have laughed
he could have laughed
we could have laughed
you could have laughed
they could have laughed

V-ing perfect

I could have been laughing
you could have been laughing
he could have been laughing
we could have been laughing
you could have been laughing
they could have been laughing

Negation

Simple form

I couldn't laugh
you couldn't laugh
he couldn't laugh
we couldn't laugh
you couldn't laugh
they couldn't laugh

V-ing form

I couldn't be laughing
you couldn't be laughing
he couldn't be laughing
we couldn't be laughing
you couldn't be laughing
they couldn't be laughing

Perfect

I couldn't have laughed
you couldn't have laughed
he couldn't have laughed
we couldn't have laughed
you couldn't have laughed
they couldn't have laughed

V-ing perfect

I couldn't have been laughing
you couldn't have been laughing
he couldn't have been laughing
we couldn't have been laughing
you couldn't have been laughing
they couldn't have been laughing

Interrogative form

Simple form

could I laugh?
could you laugh?
could he laugh?
could we laugh?
could you laugh?
could they laugh?

V-ing form

could I be laughing?
could you be laughing?
could he be laughing?
could we be laughing?
could you be laughing?
could they be laughing?

Perfect

could I have laughed?
could you have laughed?
could he have laughed?
could we have laughed?
could you have laughed?
could they have laughed?

V-ing perfect

could I have been laughing?
could you have been laughing?
could he have been laughing?
could we have been laughing?
could you have been laughing?
could they have been laughing?

Interro-negative form

Simple form

couldn't I laugh?
couldn't you laugh?
couldn't he laugh?
couldn't we laugh?
couldn't you laugh?
couldn't they laugh?

V-ing form

couldn't I be laughing?
couldn't you be laughing?
couldn't he be laughing?
couldn't we be laughing?
couldn't you be laughing?
couldn't they be laughing?

Perfect

couldn't I have laughed?
couldn't you have laughed?
couldn't he have laughed?
couldn't we have laughed?
couldn't you have laughed?
couldn't they have laughed?

V-ing perfect

couldn't I have been laughing?
couldn't you have been laughing?
couldn't he have been laughing?
couldn't we have been laughing?
couldn't you have been laughing?
couldn't they have been laughing?