English verb conjugation COULD CHAIR

Regular verb: chair - chaired - chaired

Affirmation

Simple form

I could chair
you could chair
he could chair
we could chair
you could chair
they could chair

V-ing form

I could be chairing
you could be chairing
he could be chairing
we could be chairing
you could be chairing
they could be chairing

Perfect

I could have chaired
you could have chaired
he could have chaired
we could have chaired
you could have chaired
they could have chaired

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I chair?
could you chair?
could he chair?
could we chair?
could you chair?
could they chair?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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