English verb conjugation COULD GROUND

Regular verb: ground - grounded - grounded

Affirmation

Simple form

I could ground
you could ground
he could ground
we could ground
you could ground
they could ground

V-ing form

I could be grounding
you could be grounding
he could be grounding
we could be grounding
you could be grounding
they could be grounding

Perfect

I could have grounded
you could have grounded
he could have grounded
we could have grounded
you could have grounded
they could have grounded

V-ing perfect

I could have been grounding
you could have been grounding
he could have been grounding
we could have been grounding
you could have been grounding
they could have been grounding

Negation

Simple form

I couldn't ground
you couldn't ground
he couldn't ground
we couldn't ground
you couldn't ground
they couldn't ground

V-ing form

I couldn't be grounding
you couldn't be grounding
he couldn't be grounding
we couldn't be grounding
you couldn't be grounding
they couldn't be grounding

Perfect

I couldn't have grounded
you couldn't have grounded
he couldn't have grounded
we couldn't have grounded
you couldn't have grounded
they couldn't have grounded

V-ing perfect

I couldn't have been grounding
you couldn't have been grounding
he couldn't have been grounding
we couldn't have been grounding
you couldn't have been grounding
they couldn't have been grounding

Interrogative form

Simple form

could I ground?
could you ground?
could he ground?
could we ground?
could you ground?
could they ground?

V-ing form

could I be grounding?
could you be grounding?
could he be grounding?
could we be grounding?
could you be grounding?
could they be grounding?

Perfect

could I have grounded?
could you have grounded?
could he have grounded?
could we have grounded?
could you have grounded?
could they have grounded?

V-ing perfect

could I have been grounding?
could you have been grounding?
could he have been grounding?
could we have been grounding?
could you have been grounding?
could they have been grounding?

Interro-negative form

Simple form

couldn't I ground?
couldn't you ground?
couldn't he ground?
couldn't we ground?
couldn't you ground?
couldn't they ground?

V-ing form

couldn't I be grounding?
couldn't you be grounding?
couldn't he be grounding?
couldn't we be grounding?
couldn't you be grounding?
couldn't they be grounding?

Perfect

couldn't I have grounded?
couldn't you have grounded?
couldn't he have grounded?
couldn't we have grounded?
couldn't you have grounded?
couldn't they have grounded?

V-ing perfect

couldn't I have been grounding?
couldn't you have been grounding?
couldn't he have been grounding?
couldn't we have been grounding?
couldn't you have been grounding?
couldn't they have been grounding?

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