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 can't sing
you can't sing
he can't sing
we can't sing
you can't sing
they can't sing

V-ing form

I can't be singing
you can't be singing
he can't be singing
we can't be singing
you can't be singing
they can't be singing

Perfect

I can't have sung
you can't have sung
he can't have sung
we can't have sung
you can't have sung
they can't have sung

V-ing perfect

I can't have been singing
you can't have been singing
he can't have been singing
we can't have been singing
you can't have been singing
they can't 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't I sing?
can't you sing?
can't he sing?
can't we sing?
can't you sing?
can't they sing?

V-ing form

can't I be singing?
can't you be singing?
can't he be singing?
can't we be singing?
can't you be singing?
can't they be singing?

Perfect

can't I have sung?
can't you have sung?
can't he have sung?
can't we have sung?
can't you have sung?
can't they have sung?

V-ing perfect

can't I have been singing?
can't you have been singing?
can't he have been singing?
can't we have been singing?
can't you have been singing?
can't they have been singing?

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