English verb conjugation COULD GRIND

Irregular verb: grind - ground - ground

Affirmation

Simple form

I could grind
you could grind
she could grind
we could grind
you could grind
they could grind

V-ing form

I could be grinding
you could be grinding
she could be grinding
we could be grinding
you could be grinding
they could be grinding

Perfect

I could have ground
you could have ground
she could have ground
we could have ground
you could have ground
they could have ground

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I grind?
could you grind?
could she grind?
could we grind?
could you grind?
could they grind?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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