English verb conjugation COULD QUESTION

Regular verb: question - questioned - questioned


Affirmation

Simple form

I could question
you could question
he could question
we could question
you could question
they could question

V-ing form

I could be questioning
you could be questioning
he could be questioning
we could be questioning
you could be questioning
they could be questioning

Perfect

I could have questioned
you could have questioned
he 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
he could have been questioning
we could have been questioning
you could have been questioning
they could have been questioning

Negation

Simple form

I could not question
you could not question
he could not question
we could not question
you could not question
they could not question

V-ing form

I could not be questioning
you could not be questioning
he could not be questioning
we could not be questioning
you could not be questioning
they could not be questioning

Perfect

I could not have questioned
you could not have questioned
he could not have questioned
we could not have questioned
you could not have questioned
they could not have questioned

V-ing perfect

I could not have been questioning
you could not have been questioning
he could not have been questioning
we could not have been questioning
you could not have been questioning
they could not have been questioning

Interrogative form

Simple form

could I question?
could you question?
could he question?
could we question?
could you question?
could they question?

V-ing form

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

Perfect

could I have questioned?
could you have questioned?
could he 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 he have been questioning?
could we have been questioning?
could you have been questioning?
could they have been questioning?

Interro-negative form

Simple form

could I not question?
could you not question?
could he not question?
could we not question?
could you not question?
could they not question?

V-ing form

could I not be questioning?
could you not be questioning?
could he not be questioning?
could we not be questioning?
could you not be questioning?
could they not be questioning?

Perfect

could I not have questioned?
could you not have questioned?
could he not have questioned?
could we not have questioned?
could you not have questioned?
could they not have questioned?

V-ing perfect

could I not have been questioning?
could you not have been questioning?
could he not have been questioning?
could we not have been questioning?
could you not have been questioning?
could they not have been questioning?