English verb conjugation COULD DECK

Regular verb: deck - decked - decked

Affirmation

Simple form

I could deck
you could deck
he could deck
we could deck
you could deck
they could deck

V-ing form

I could be decking
you could be decking
he could be decking
we could be decking
you could be decking
they could be decking

Perfect

I could have decked
you could have decked
he could have decked
we could have decked
you could have decked
they could have decked

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I deck?
could you deck?
could he deck?
could we deck?
could you deck?
could they deck?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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