English verb conjugation
CAN RUMBLE

Regular verb: rumble - rumbled - rumbled

Affirmation

Simple form	V-ing form
I can rumble you can rumble she can rumble we can rumble you can rumble they can rumble	I can be rumbling you can be rumbling she can be rumbling we can be rumbling you can be rumbling they can be rumbling
Perfect	V-ing perfect
I can have rumbled you can have rumbled she can have rumbled we can have rumbled you can have rumbled they can have rumbled	I can have been rumbling you can have been rumbling she can have been rumbling we can have been rumbling you can have been rumbling they can have been rumbling

Negation

Simple form	V-ing form
I cannot rumble you cannot rumble she cannot rumble we cannot rumble you cannot rumble they cannot rumble	I cannot be rumbling you cannot be rumbling she cannot be rumbling we cannot be rumbling you cannot be rumbling they cannot be rumbling
Perfect	V-ing perfect
I cannot have rumbled you cannot have rumbled she cannot have rumbled we cannot have rumbled you cannot have rumbled they cannot have rumbled	I cannot have been rumbling you cannot have been rumbling she cannot have been rumbling we cannot have been rumbling you cannot have been rumbling they cannot have been rumbling

Interrogative form

Simple form	V-ing form
can I rumble? can you rumble? can she rumble? can we rumble? can you rumble? can they rumble?	can I be rumbling? can you be rumbling? can she be rumbling? can we be rumbling? can you be rumbling? can they be rumbling?
Perfect	V-ing perfect
can I have rumbled? can you have rumbled? can she have rumbled? can we have rumbled? can you have rumbled? can they have rumbled?	can I have been rumbling? can you have been rumbling? can she have been rumbling? can we have been rumbling? can you have been rumbling? can they have been rumbling?

Interro-negative form

Simple form	V-ing form
can I not rumble? can you not rumble? can she not rumble? can we not rumble? can you not rumble? can they not rumble?	can I not be rumbling? can you not be rumbling? can she not be rumbling? can we not be rumbling? can you not be rumbling? can they not be rumbling?
Perfect	V-ing perfect
can I not have rumbled? can you not have rumbled? can she not have rumbled? can we not have rumbled? can you not have rumbled? can they not have rumbled?	can I not have been rumbling? can you not have been rumbling? can she not have been rumbling? can we not have been rumbling? can you not have been rumbling? can they not have been rumbling?