English verb conjugation COULD DESIGN

Regular verb: design - designed - designed

Affirmation

Simple form

I could design
you could design
he could design
we could design
you could design
they could design

V-ing form

I could be designing
you could be designing
he could be designing
we could be designing
you could be designing
they could be designing

Perfect

I could have designed
you could have designed
he could have designed
we could have designed
you could have designed
they could have designed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I design?
could you design?
could he design?
could we design?
could you design?
could they design?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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