English verb conjugation CAN SING

Irregular verb: sing - sang - sung

Affirmation

Simple form

I can sing
you can sing
he can sing
we can sing
you can sing
they can sing

V-ing form

I can be singing
you can be singing
he can be singing
we can be singing
you can be singing
they can be singing

Perfect

I can have sung
you can have sung
he can have sung
we can have sung
you can have sung
they can have sung

V-ing perfect

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

Negation

Simple form

I cannot sing
you cannot sing
he cannot sing
we cannot sing
you cannot sing
they cannot sing

V-ing form

I cannot be singing
you cannot be singing
he cannot be singing
we cannot be singing
you cannot be singing
they cannot be singing

Perfect

I cannot have sung
you cannot have sung
he cannot have sung
we cannot have sung
you cannot have sung
they cannot have sung

V-ing perfect

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

Interrogative form

Simple form

can I sing?
can you sing?
can he sing?
can we sing?
can you sing?
can they sing?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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