English verb conjugation
CAN SMUDGE

Regular verb: smudge - smudged - smudged

Affirmation

Simple form	V-ing form
I can smudge you can smudge he can smudge we can smudge you can smudge they can smudge	I can be smudging you can be smudging he can be smudging we can be smudging you can be smudging they can be smudging
Perfect	V-ing perfect
I can have smudged you can have smudged he can have smudged we can have smudged you can have smudged they can have smudged	I can have been smudging you can have been smudging he can have been smudging we can have been smudging you can have been smudging they can have been smudging

Negation

Simple form	V-ing form
I cannot smudge you cannot smudge he cannot smudge we cannot smudge you cannot smudge they cannot smudge	I cannot be smudging you cannot be smudging he cannot be smudging we cannot be smudging you cannot be smudging they cannot be smudging
Perfect	V-ing perfect
I cannot have smudged you cannot have smudged he cannot have smudged we cannot have smudged you cannot have smudged they cannot have smudged	I cannot have been smudging you cannot have been smudging he cannot have been smudging we cannot have been smudging you cannot have been smudging they cannot have been smudging

Interrogative form

Simple form	V-ing form
can I smudge? can you smudge? can he smudge? can we smudge? can you smudge? can they smudge?	can I be smudging? can you be smudging? can he be smudging? can we be smudging? can you be smudging? can they be smudging?
Perfect	V-ing perfect
can I have smudged? can you have smudged? can he have smudged? can we have smudged? can you have smudged? can they have smudged?	can I have been smudging? can you have been smudging? can he have been smudging? can we have been smudging? can you have been smudging? can they have been smudging?

Interro-negative form

Simple form	V-ing form
can I not smudge? can you not smudge? can he not smudge? can we not smudge? can you not smudge? can they not smudge?	can I not be smudging? can you not be smudging? can he not be smudging? can we not be smudging? can you not be smudging? can they not be smudging?
Perfect	V-ing perfect
can I not have smudged? can you not have smudged? can he not have smudged? can we not have smudged? can you not have smudged? can they not have smudged?	can I not have been smudging? can you not have been smudging? can he not have been smudging? can we not have been smudging? can you not have been smudging? can they not have been smudging?