English verb conjugation COULD SCUBA

Regular verb: scuba - scubaed - scubaed

Affirmation

Simple form

I could scuba
you could scuba
he could scuba
we could scuba
you could scuba
they could scuba

V-ing form

I could be scubaing
you could be scubaing
he could be scubaing
we could be scubaing
you could be scubaing
they could be scubaing

Perfect

I could have scubaed
you could have scubaed
he could have scubaed
we could have scubaed
you could have scubaed
they could have scubaed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I scuba?
could you scuba?
could he scuba?
could we scuba?
could you scuba?
could they scuba?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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