English verb conjugation
CAN BURROW

Regular verb: burrow - burrowed - burrowed

Affirmation

Simple form	V-ing form
I can burrow you can burrow she can burrow we can burrow you can burrow they can burrow	I can be burrowing you can be burrowing she can be burrowing we can be burrowing you can be burrowing they can be burrowing
Perfect	V-ing perfect
I can have burrowed you can have burrowed she can have burrowed we can have burrowed you can have burrowed they can have burrowed	I can have been burrowing you can have been burrowing she can have been burrowing we can have been burrowing you can have been burrowing they can have been burrowing

Negation

Simple form	V-ing form
I cannot burrow you cannot burrow she cannot burrow we cannot burrow you cannot burrow they cannot burrow	I cannot be burrowing you cannot be burrowing she cannot be burrowing we cannot be burrowing you cannot be burrowing they cannot be burrowing
Perfect	V-ing perfect
I cannot have burrowed you cannot have burrowed she cannot have burrowed we cannot have burrowed you cannot have burrowed they cannot have burrowed	I cannot have been burrowing you cannot have been burrowing she cannot have been burrowing we cannot have been burrowing you cannot have been burrowing they cannot have been burrowing

Interrogative form

Simple form	V-ing form
can I burrow? can you burrow? can she burrow? can we burrow? can you burrow? can they burrow?	can I be burrowing? can you be burrowing? can she be burrowing? can we be burrowing? can you be burrowing? can they be burrowing?
Perfect	V-ing perfect
can I have burrowed? can you have burrowed? can she have burrowed? can we have burrowed? can you have burrowed? can they have burrowed?	can I have been burrowing? can you have been burrowing? can she have been burrowing? can we have been burrowing? can you have been burrowing? can they have been burrowing?

Interro-negative form

Simple form	V-ing form
can I not burrow? can you not burrow? can she not burrow? can we not burrow? can you not burrow? can they not burrow?	can I not be burrowing? can you not be burrowing? can she not be burrowing? can we not be burrowing? can you not be burrowing? can they not be burrowing?
Perfect	V-ing perfect
can I not have burrowed? can you not have burrowed? can she not have burrowed? can we not have burrowed? can you not have burrowed? can they not have burrowed?	can I not have been burrowing? can you not have been burrowing? can she not have been burrowing? can we not have been burrowing? can you not have been burrowing? can they not have been burrowing?