female gender | Modal : no | may | might | can | could | shall | should | will | would | must | ought to
English verb conjugation COULD FILL
Regular verb: fill - filled - filled
Affirmation
Simple form
I could fillyou could fill
he could fill
we could fill
you could fill
they could fill
V-ing form
I could be fillingyou could be filling
he could be filling
we could be filling
you could be filling
they could be filling
Perfect
I could have filledyou could have filled
he could have filled
we could have filled
you could have filled
they could have filled
V-ing perfect
I could have been fillingyou 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
I couldn't fillyou couldn't fill
he couldn't fill
we couldn't fill
you couldn't fill
they couldn't fill
V-ing form
I couldn't be fillingyou 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
I couldn't have filledyou couldn't have filled
he 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 fillingyou 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
could I fill?could you fill?
could he fill?
could we fill?
could you fill?
could they fill?
V-ing form
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
could I have filled?could you have filled?
could he 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 he 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 he 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 he 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 he 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 he have been filling?
couldn't we have been filling?
couldn't you have been filling?
couldn't they have been filling?