English verb conjugation COULD QUESTION

Regular verb: question - questioned - questioned

Affirmation

Simple form

I could question
you could question
she could question
we could question
you could question
they could question

V-ing form

I could be questioning
you could be questioning
she could be questioning
we could be questioning
you could be questioning
they could be questioning

Perfect

I could have questioned
you could have questioned
she could have questioned
we could have questioned
you could have questioned
they could have questioned

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I question?
could you question?
could she question?
could we question?
could you question?
could they question?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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