English verb conjugation
CAN BUMBLE

Regular verb: bumble - bumbled - bumbled

Affirmation

Simple form	V-ing form
I can bumble you can bumble she can bumble we can bumble you can bumble they can bumble	I can be bumbling you can be bumbling she can be bumbling we can be bumbling you can be bumbling they can be bumbling
Perfect	V-ing perfect
I can have bumbled you can have bumbled she can have bumbled we can have bumbled you can have bumbled they can have bumbled	I can have been bumbling you can have been bumbling she can have been bumbling we can have been bumbling you can have been bumbling they can have been bumbling

Negation

Simple form	V-ing form
I can't bumble you can't bumble she can't bumble we can't bumble you can't bumble they can't bumble	I can't be bumbling you can't be bumbling she can't be bumbling we can't be bumbling you can't be bumbling they can't be bumbling
Perfect	V-ing perfect
I can't have bumbled you can't have bumbled she can't have bumbled we can't have bumbled you can't have bumbled they can't have bumbled	I can't have been bumbling you can't have been bumbling she can't have been bumbling we can't have been bumbling you can't have been bumbling they can't have been bumbling

Interrogative form

Simple form	V-ing form
can I bumble? can you bumble? can she bumble? can we bumble? can you bumble? can they bumble?	can I be bumbling? can you be bumbling? can she be bumbling? can we be bumbling? can you be bumbling? can they be bumbling?
Perfect	V-ing perfect
can I have bumbled? can you have bumbled? can she have bumbled? can we have bumbled? can you have bumbled? can they have bumbled?	can I have been bumbling? can you have been bumbling? can she have been bumbling? can we have been bumbling? can you have been bumbling? can they have been bumbling?

Interro-negative form

Simple form	V-ing form
can't I bumble? can't you bumble? can't she bumble? can't we bumble? can't you bumble? can't they bumble?	can't I be bumbling? can't you be bumbling? can't she be bumbling? can't we be bumbling? can't you be bumbling? can't they be bumbling?
Perfect	V-ing perfect
can't I have bumbled? can't you have bumbled? can't she have bumbled? can't we have bumbled? can't you have bumbled? can't they have bumbled?	can't I have been bumbling? can't you have been bumbling? can't she have been bumbling? can't we have been bumbling? can't you have been bumbling? can't they have been bumbling?