English verb conjugation
CAN CLUMP

Regular verb: clump - clumped - clumped

Affirmation

Simple form	V-ing form
I can clump you can clump she can clump we can clump you can clump they can clump	I can be clumping you can be clumping she can be clumping we can be clumping you can be clumping they can be clumping
Perfect	V-ing perfect
I can have clumped you can have clumped she can have clumped we can have clumped you can have clumped they can have clumped	I can have been clumping you can have been clumping she can have been clumping we can have been clumping you can have been clumping they can have been clumping

Negation

Simple form	V-ing form
I cannot clump you cannot clump she cannot clump we cannot clump you cannot clump they cannot clump	I cannot be clumping you cannot be clumping she cannot be clumping we cannot be clumping you cannot be clumping they cannot be clumping
Perfect	V-ing perfect
I cannot have clumped you cannot have clumped she cannot have clumped we cannot have clumped you cannot have clumped they cannot have clumped	I cannot have been clumping you cannot have been clumping she cannot have been clumping we cannot have been clumping you cannot have been clumping they cannot have been clumping

Interrogative form

Simple form	V-ing form
can I clump? can you clump? can she clump? can we clump? can you clump? can they clump?	can I be clumping? can you be clumping? can she be clumping? can we be clumping? can you be clumping? can they be clumping?
Perfect	V-ing perfect
can I have clumped? can you have clumped? can she have clumped? can we have clumped? can you have clumped? can they have clumped?	can I have been clumping? can you have been clumping? can she have been clumping? can we have been clumping? can you have been clumping? can they have been clumping?

Interro-negative form

Simple form	V-ing form
can I not clump? can you not clump? can she not clump? can we not clump? can you not clump? can they not clump?	can I not be clumping? can you not be clumping? can she not be clumping? can we not be clumping? can you not be clumping? can they not be clumping?
Perfect	V-ing perfect
can I not have clumped? can you not have clumped? can she not have clumped? can we not have clumped? can you not have clumped? can they not have clumped?	can I not have been clumping? can you not have been clumping? can she not have been clumping? can we not have been clumping? can you not have been clumping? can they not have been clumping?