English verb conjugation COULD FILL

Regular verb: fill - filled - filled

Affirmation

Simple form

I could fill
you could fill
she could fill
we could fill
you could fill
they could fill

V-ing form

I could be filling
you could be filling
she could be filling
we could be filling
you could be filling
they could be filling

Perfect

I could have filled
you could have filled
she could have filled
we could have filled
you could have filled
they could have filled

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I fill?
could you fill?
could she fill?
could we fill?
could you fill?
could they fill?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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