English verb conjugation COULD COFFIN

Regular verb: coffin - coffined - coffined

Affirmation

Simple form

I could coffin
you could coffin
he could coffin
we could coffin
you could coffin
they could coffin

V-ing form

I could be coffining
you could be coffining
he could be coffining
we could be coffining
you could be coffining
they could be coffining

Perfect

I could have coffined
you could have coffined
he could have coffined
we could have coffined
you could have coffined
they could have coffined

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I coffin?
could you coffin?
could he coffin?
could we coffin?
could you coffin?
could they coffin?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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