English verb conjugation COULD GRAVE

Regular verb: grave - graved - graved

Affirmation

Simple form

I could grave
you could grave
she could grave
we could grave
you could grave
they could grave

V-ing form

I could be graving
you could be graving
she could be graving
we could be graving
you could be graving
they could be graving

Perfect

I could have graved
you could have graved
she could have graved
we could have graved
you could have graved
they could have graved

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I grave?
could you grave?
could she grave?
could we grave?
could you grave?
could they grave?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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