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 could not deck
you could not deck
he could not deck
we could not deck
you could not deck
they could not deck

V-ing form

I could not be decking
you could not be decking
he could not be decking
we could not be decking
you could not be decking
they could not be decking

Perfect

I could not have decked
you could not have decked
he could not have decked
we could not have decked
you could not have decked
they could not have decked

V-ing perfect

I could not have been decking
you could not have been decking
he could not have been decking
we could not have been decking
you could not have been decking
they could not 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

could I not deck?
could you not deck?
could he not deck?
could we not deck?
could you not deck?
could they not deck?

V-ing form

could I not be decking?
could you not be decking?
could he not be decking?
could we not be decking?
could you not be decking?
could they not be decking?

Perfect

could I not have decked?
could you not have decked?
could he not have decked?
could we not have decked?
could you not have decked?
could they not have decked?

V-ing perfect

could I not have been decking?
could you not have been decking?
could he not have been decking?
could we not have been decking?
could you not have been decking?
could they not have been decking?

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