English verb conjugation COULD BOLSTER

Regular verb: bolster - bolstered - bolstered

Affirmation

Simple form

I could bolster
you could bolster
she could bolster
we could bolster
you could bolster
they could bolster

V-ing form

I could be bolstering
you could be bolstering
she could be bolstering
we could be bolstering
you could be bolstering
they could be bolstering

Perfect

I could have bolstered
you could have bolstered
she could have bolstered
we could have bolstered
you could have bolstered
they could have bolstered

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I bolster?
could you bolster?
could she bolster?
could we bolster?
could you bolster?
could they bolster?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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