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 can't rumble you can't rumble she can't rumble we can't rumble you can't rumble they can't rumble	I can't be rumbling you can't be rumbling she can't be rumbling we can't be rumbling you can't be rumbling they can't be rumbling
Perfect	V-ing perfect
I can't have rumbled you can't have rumbled she can't have rumbled we can't have rumbled you can't have rumbled they can't have rumbled	I can't have been rumbling you can't have been rumbling she can't have been rumbling we can't have been rumbling you can't have been rumbling they can't 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't I rumble? can't you rumble? can't she rumble? can't we rumble? can't you rumble? can't they rumble?	can't I be rumbling? can't you be rumbling? can't she be rumbling? can't we be rumbling? can't you be rumbling? can't they be rumbling?
Perfect	V-ing perfect
can't I have rumbled? can't you have rumbled? can't she have rumbled? can't we have rumbled? can't you have rumbled? can't they have rumbled?	can't I have been rumbling? can't you have been rumbling? can't she have been rumbling? can't we have been rumbling? can't you have been rumbling? can't they have been rumbling?