English verb conjugation COULD ADVERTISE

Regular verb: advertise - advertised - advertised

Affirmation

Simple form

I could advertise
you could advertise
she could advertise
we could advertise
you could advertise
they could advertise

V-ing form

I could be advertising
you could be advertising
she could be advertising
we could be advertising
you could be advertising
they could be advertising

Perfect

I could have advertised
you could have advertised
she could have advertised
we could have advertised
you could have advertised
they could have advertised

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I advertise?
could you advertise?
could she advertise?
could we advertise?
could you advertise?
could they advertise?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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