English verb conjugation COULD STAFF

Regular verb: staff - staffed - staffed

Affirmation

Simple form

I could staff
you could staff
she could staff
we could staff
you could staff
they could staff

V-ing form

I could be staffing
you could be staffing
she could be staffing
we could be staffing
you could be staffing
they could be staffing

Perfect

I could have staffed
you could have staffed
she could have staffed
we could have staffed
you could have staffed
they could have staffed

V-ing perfect

I could have been staffing
you could have been staffing
she could have been staffing
we could have been staffing
you could have been staffing
they could have been staffing

Negation

Simple form

I couldn't staff
you couldn't staff
she couldn't staff
we couldn't staff
you couldn't staff
they couldn't staff

V-ing form

I couldn't be staffing
you couldn't be staffing
she couldn't be staffing
we couldn't be staffing
you couldn't be staffing
they couldn't be staffing

Perfect

I couldn't have staffed
you couldn't have staffed
she couldn't have staffed
we couldn't have staffed
you couldn't have staffed
they couldn't have staffed

V-ing perfect

I couldn't have been staffing
you couldn't have been staffing
she couldn't have been staffing
we couldn't have been staffing
you couldn't have been staffing
they couldn't have been staffing

Interrogative form

Simple form

could I staff?
could you staff?
could she staff?
could we staff?
could you staff?
could they staff?

V-ing form

could I be staffing?
could you be staffing?
could she be staffing?
could we be staffing?
could you be staffing?
could they be staffing?

Perfect

could I have staffed?
could you have staffed?
could she have staffed?
could we have staffed?
could you have staffed?
could they have staffed?

V-ing perfect

could I have been staffing?
could you have been staffing?
could she have been staffing?
could we have been staffing?
could you have been staffing?
could they have been staffing?

Interro-negative form

Simple form

couldn't I staff?
couldn't you staff?
couldn't she staff?
couldn't we staff?
couldn't you staff?
couldn't they staff?

V-ing form

couldn't I be staffing?
couldn't you be staffing?
couldn't she be staffing?
couldn't we be staffing?
couldn't you be staffing?
couldn't they be staffing?

Perfect

couldn't I have staffed?
couldn't you have staffed?
couldn't she have staffed?
couldn't we have staffed?
couldn't you have staffed?
couldn't they have staffed?

V-ing perfect

couldn't I have been staffing?
couldn't you have been staffing?
couldn't she have been staffing?
couldn't we have been staffing?
couldn't you have been staffing?
couldn't they have been staffing?

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