English verb conjugation CAN STUMBLE

Regular verb: stumble - stumbled - stumbled

Affirmation

Simple form

I can stumble
you can stumble
he can stumble
we can stumble
you can stumble
they can stumble

V-ing form

I can be stumbling
you can be stumbling
he can be stumbling
we can be stumbling
you can be stumbling
they can be stumbling

Perfect

I can have stumbled
you can have stumbled
he can have stumbled
we can have stumbled
you can have stumbled
they can have stumbled

V-ing perfect

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

Negation

Simple form

I cannot stumble
you cannot stumble
he cannot stumble
we cannot stumble
you cannot stumble
they cannot stumble

V-ing form

I cannot be stumbling
you cannot be stumbling
he cannot be stumbling
we cannot be stumbling
you cannot be stumbling
they cannot be stumbling

Perfect

I cannot have stumbled
you cannot have stumbled
he cannot have stumbled
we cannot have stumbled
you cannot have stumbled
they cannot have stumbled

V-ing perfect

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

Interrogative form

Simple form

can I stumble?
can you stumble?
can he stumble?
can we stumble?
can you stumble?
can they stumble?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Page top