English verb conjugation COULD BOOK

Regular verb: book - booked - booked

Affirmation

Simple form

I could book
you could book
he could book
we could book
you could book
they could book

V-ing form

I could be booking
you could be booking
he could be booking
we could be booking
you could be booking
they could be booking

Perfect

I could have booked
you could have booked
he could have booked
we could have booked
you could have booked
they could have booked

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I book?
could you book?
could he book?
could we book?
could you book?
could they book?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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