English verb conjugation
CAN UPCHUCK

Regular verb: upchuck - upchucked - upchucked

Affirmation

Simple form	V-ing form
I can upchuck you can upchuck she can upchuck we can upchuck you can upchuck they can upchuck	I can be upchucking you can be upchucking she can be upchucking we can be upchucking you can be upchucking they can be upchucking
Perfect	V-ing perfect
I can have upchucked you can have upchucked she can have upchucked we can have upchucked you can have upchucked they can have upchucked	I can have been upchucking you can have been upchucking she can have been upchucking we can have been upchucking you can have been upchucking they can have been upchucking

Negation

Simple form	V-ing form
I cannot upchuck you cannot upchuck she cannot upchuck we cannot upchuck you cannot upchuck they cannot upchuck	I cannot be upchucking you cannot be upchucking she cannot be upchucking we cannot be upchucking you cannot be upchucking they cannot be upchucking
Perfect	V-ing perfect
I cannot have upchucked you cannot have upchucked she cannot have upchucked we cannot have upchucked you cannot have upchucked they cannot have upchucked	I cannot have been upchucking you cannot have been upchucking she cannot have been upchucking we cannot have been upchucking you cannot have been upchucking they cannot have been upchucking

Interrogative form

Simple form	V-ing form
can I upchuck? can you upchuck? can she upchuck? can we upchuck? can you upchuck? can they upchuck?	can I be upchucking? can you be upchucking? can she be upchucking? can we be upchucking? can you be upchucking? can they be upchucking?
Perfect	V-ing perfect
can I have upchucked? can you have upchucked? can she have upchucked? can we have upchucked? can you have upchucked? can they have upchucked?	can I have been upchucking? can you have been upchucking? can she have been upchucking? can we have been upchucking? can you have been upchucking? can they have been upchucking?

Interro-negative form

Simple form	V-ing form
can I not upchuck? can you not upchuck? can she not upchuck? can we not upchuck? can you not upchuck? can they not upchuck?	can I not be upchucking? can you not be upchucking? can she not be upchucking? can we not be upchucking? can you not be upchucking? can they not be upchucking?
Perfect	V-ing perfect
can I not have upchucked? can you not have upchucked? can she not have upchucked? can we not have upchucked? can you not have upchucked? can they not have upchucked?	can I not have been upchucking? can you not have been upchucking? can she not have been upchucking? can we not have been upchucking? can you not have been upchucking? can they not have been upchucking?