The Conjugator
English verb conjugation
COULD FILL

Regular verb: fill - filled - filled

Affirmation

Simple form

V-ing form

I could fill
you could fill
he could fill
we could fill
you could fill
they could fill
I could be filling
you could be filling
he could be filling
we could be filling
you could be filling
they could be filling

Perfect

V-ing perfect

I could have filled
you could have filled
he could have filled
we could have filled
you could have filled
they could have filled
I could have been filling
you could have been filling
he could have been filling
we could have been filling
you could have been filling
they could have been filling

Negation

Simple form

V-ing form

I couldn't fill
you couldn't fill
he couldn't fill
we couldn't fill
you couldn't fill
they couldn't fill
I couldn't be filling
you couldn't be filling
he couldn't be filling
we couldn't be filling
you couldn't be filling
they couldn't be filling

Perfect

V-ing perfect

I couldn't have filled
you couldn't have filled
he couldn't have filled
we couldn't have filled
you couldn't have filled
they couldn't have filled
I couldn't have been filling
you couldn't have been filling
he 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

V-ing form

could I fill?
could you fill?
could he fill?
could we fill?
could you fill?
could they fill?
could I be filling?
could you be filling?
could he be filling?
could we be filling?
could you be filling?
could they be filling?

Perfect

V-ing perfect

could I have filled?
could you have filled?
could he have filled?
could we have filled?
could you have filled?
could they have filled?
could I have been filling?
could you have been filling?
could he have been filling?
could we have been filling?
could you have been filling?
could they have been filling?

Interro-negative form

Simple form

V-ing form

couldn't I fill?
couldn't you fill?
couldn't he fill?
couldn't we fill?
couldn't you fill?
couldn't they fill?
couldn't I be filling?
couldn't you be filling?
couldn't he be filling?
couldn't we be filling?
couldn't you be filling?
couldn't they be filling?

Perfect

V-ing perfect

couldn't I have filled?
couldn't you have filled?
couldn't he have filled?
couldn't we have filled?
couldn't you have filled?
couldn't they have filled?
couldn't I have been filling?
couldn't you have been filling?
couldn't he have been filling?
couldn't we have been filling?
couldn't you have been filling?
couldn't they have been filling?