English verb conjugation COULD BELIEVE

Regular verb: believe - believed - believed

Affirmation

Simple form

I could believe
you could believe
he could believe
we could believe
you could believe
they could believe

V-ing form

I could be believing
you could be believing
he could be believing
we could be believing
you could be believing
they could be believing

Perfect

I could have believed
you could have believed
he could have believed
we could have believed
you could have believed
they could have believed

V-ing perfect

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

Negation

Simple form

I could not believe
you could not believe
he could not believe
we could not believe
you could not believe
they could not believe

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I believe?
could you believe?
could he believe?
could we believe?
could you believe?
could they believe?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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