English verb conjugation CAN CURB

Regular verb: curb - curbed - curbed

Affirmation

Simple form

I can curb
you can curb
he can curb
we can curb
you can curb
they can curb

V-ing form

I can be curbing
you can be curbing
he can be curbing
we can be curbing
you can be curbing
they can be curbing

Perfect

I can have curbed
you can have curbed
he can have curbed
we can have curbed
you can have curbed
they can have curbed

V-ing perfect

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

Negation

Simple form

I cannot curb
you cannot curb
he cannot curb
we cannot curb
you cannot curb
they cannot curb

V-ing form

I cannot be curbing
you cannot be curbing
he cannot be curbing
we cannot be curbing
you cannot be curbing
they cannot be curbing

Perfect

I cannot have curbed
you cannot have curbed
he cannot have curbed
we cannot have curbed
you cannot have curbed
they cannot have curbed

V-ing perfect

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

Interrogative form

Simple form

can I curb?
can you curb?
can he curb?
can we curb?
can you curb?
can they curb?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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