English verb conjugation CAN TURN

Regular verb: turn - turned - turned

Affirmation

Simple form

I can turn
you can turn
he can turn
we can turn
you can turn
they can turn

V-ing form

I can be turning
you can be turning
he can be turning
we can be turning
you can be turning
they can be turning

Perfect

I can have turned
you can have turned
he can have turned
we can have turned
you can have turned
they can have turned

V-ing perfect

I can have been turning
you can have been turning
he can have been turning
we can have been turning
you can have been turning
they can have been turning

Negation

Simple form

I cannot turn
you cannot turn
he cannot turn
we cannot turn
you cannot turn
they cannot turn

V-ing form

I cannot be turning
you cannot be turning
he cannot be turning
we cannot be turning
you cannot be turning
they cannot be turning

Perfect

I cannot have turned
you cannot have turned
he cannot have turned
we cannot have turned
you cannot have turned
they cannot have turned

V-ing perfect

I cannot have been turning
you cannot have been turning
he cannot have been turning
we cannot have been turning
you cannot have been turning
they cannot have been turning

Interrogative form

Simple form

can I turn?
can you turn?
can he turn?
can we turn?
can you turn?
can they turn?

V-ing form

can I be turning?
can you be turning?
can he be turning?
can we be turning?
can you be turning?
can they be turning?

Perfect

can I have turned?
can you have turned?
can he have turned?
can we have turned?
can you have turned?
can they have turned?

V-ing perfect

can I have been turning?
can you have been turning?
can he have been turning?
can we have been turning?
can you have been turning?
can they have been turning?

Interro-negative form

Simple form

can I not turn?
can you not turn?
can he not turn?
can we not turn?
can you not turn?
can they not turn?

V-ing form

can I not be turning?
can you not be turning?
can he not be turning?
can we not be turning?
can you not be turning?
can they not be turning?

Perfect

can I not have turned?
can you not have turned?
can he not have turned?
can we not have turned?
can you not have turned?
can they not have turned?

V-ing perfect

can I not have been turning?
can you not have been turning?
can he not have been turning?
can we not have been turning?
can you not have been turning?
can they not have been turning?

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