English verb conjugation COULD BOOST

Regular verb: boost - boosted - boosted

Affirmation

Simple form

I could boost
you could boost
he could boost
we could boost
you could boost
they could boost

V-ing form

I could be boosting
you could be boosting
he could be boosting
we could be boosting
you could be boosting
they could be boosting

Perfect

I could have boosted
you could have boosted
he could have boosted
we could have boosted
you could have boosted
they could have boosted

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I boost?
could you boost?
could he boost?
could we boost?
could you boost?
could they boost?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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