English verb conjugation COULD ASSIST

Regular verb: assist - assisted - assisted

Affirmation

Simple form

I could assist
you could assist
he could assist
we could assist
you could assist
they could assist

V-ing form

I could be assisting
you could be assisting
he could be assisting
we could be assisting
you could be assisting
they could be assisting

Perfect

I could have assisted
you could have assisted
he could have assisted
we could have assisted
you could have assisted
they could have assisted

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I assist?
could you assist?
could he assist?
could we assist?
could you assist?
could they assist?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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