English verb conjugation COULD MASTURBATE

Regular verb: masturbate - masturbated - masturbated

Affirmation

Simple form

I could masturbate
you could masturbate
he could masturbate
we could masturbate
you could masturbate
they could masturbate

V-ing form

I could be masturbating
you could be masturbating
he could be masturbating
we could be masturbating
you could be masturbating
they could be masturbating

Perfect

I could have masturbated
you could have masturbated
he could have masturbated
we could have masturbated
you could have masturbated
they could have masturbated

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I masturbate?
could you masturbate?
could he masturbate?
could we masturbate?
could you masturbate?
could they masturbate?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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