English verb conjugation COULD TEACH

Irregular verb: teach - taught - taught


Affirmation

Simple form

I could teach
you could teach
he could teach
we could teach
you could teach
they could teach

V-ing form

I could be teaching
you could be teaching
he could be teaching
we could be teaching
you could be teaching
they could be teaching

Perfect

I could have taught
you could have taught
he could have taught
we could have taught
you could have taught
they could have taught

V-ing perfect

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

Negation

Simple form

I could not teach
you could not teach
he could not teach
we could not teach
you could not teach
they could not teach

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I teach?
could you teach?
could he teach?
could we teach?
could you teach?
could they teach?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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