English verb conjugation
CAN GULP

Regular verb: gulp - gulped - gulped

Affirmation

Simple form	V-ing form
I can gulp you can gulp he can gulp we can gulp you can gulp they can gulp	I can be gulping you can be gulping he can be gulping we can be gulping you can be gulping they can be gulping
Perfect	V-ing perfect
I can have gulped you can have gulped he can have gulped we can have gulped you can have gulped they can have gulped	I can have been gulping you can have been gulping he can have been gulping we can have been gulping you can have been gulping they can have been gulping

Negation

Simple form	V-ing form
I can't gulp you can't gulp he can't gulp we can't gulp you can't gulp they can't gulp	I can't be gulping you can't be gulping he can't be gulping we can't be gulping you can't be gulping they can't be gulping
Perfect	V-ing perfect
I can't have gulped you can't have gulped he can't have gulped we can't have gulped you can't have gulped they can't have gulped	I can't have been gulping you can't have been gulping he can't have been gulping we can't have been gulping you can't have been gulping they can't have been gulping

Interrogative form

Simple form	V-ing form
can I gulp? can you gulp? can he gulp? can we gulp? can you gulp? can they gulp?	can I be gulping? can you be gulping? can he be gulping? can we be gulping? can you be gulping? can they be gulping?
Perfect	V-ing perfect
can I have gulped? can you have gulped? can he have gulped? can we have gulped? can you have gulped? can they have gulped?	can I have been gulping? can you have been gulping? can he have been gulping? can we have been gulping? can you have been gulping? can they have been gulping?

Interro-negative form

Simple form	V-ing form
can't I gulp? can't you gulp? can't he gulp? can't we gulp? can't you gulp? can't they gulp?	can't I be gulping? can't you be gulping? can't he be gulping? can't we be gulping? can't you be gulping? can't they be gulping?
Perfect	V-ing perfect
can't I have gulped? can't you have gulped? can't he have gulped? can't we have gulped? can't you have gulped? can't they have gulped?	can't I have been gulping? can't you have been gulping? can't he have been gulping? can't we have been gulping? can't you have been gulping? can't they have been gulping?