English verb conjugation COULD DAM

Regular verb: dam - dammed - dammed

Affirmation

Simple form

I could dam
you could dam
he could dam
we could dam
you could dam
they could dam

V-ing form

I could be damming
you could be damming
he could be damming
we could be damming
you could be damming
they could be damming

Perfect

I could have dammed
you could have dammed
he could have dammed
we could have dammed
you could have dammed
they could have dammed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I dam?
could you dam?
could he dam?
could we dam?
could you dam?
could they dam?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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