English verb conjugation CAN CRUMBLE

Regular verb: crumble - crumbled - crumbled

Affirmation

Simple form

I can crumble
you can crumble
he can crumble
we can crumble
you can crumble
they can crumble

V-ing form

I can be crumbling
you can be crumbling
he can be crumbling
we can be crumbling
you can be crumbling
they can be crumbling

Perfect

I can have crumbled
you can have crumbled
he can have crumbled
we can have crumbled
you can have crumbled
they can have crumbled

V-ing perfect

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

Negation

Simple form

I cannot crumble
you cannot crumble
he cannot crumble
we cannot crumble
you cannot crumble
they cannot crumble

V-ing form

I cannot be crumbling
you cannot be crumbling
he cannot be crumbling
we cannot be crumbling
you cannot be crumbling
they cannot be crumbling

Perfect

I cannot have crumbled
you cannot have crumbled
he cannot have crumbled
we cannot have crumbled
you cannot have crumbled
they cannot have crumbled

V-ing perfect

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

Interrogative form

Simple form

can I crumble?
can you crumble?
can he crumble?
can we crumble?
can you crumble?
can they crumble?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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