English verb conjugation
CAN BUZZ

Regular verb: buzz - buzzed - buzzed

Affirmation

Simple form	V-ing form
I can buzz you can buzz she can buzz we can buzz you can buzz they can buzz	I can be buzzing you can be buzzing she can be buzzing we can be buzzing you can be buzzing they can be buzzing
Perfect	V-ing perfect
I can have buzzed you can have buzzed she can have buzzed we can have buzzed you can have buzzed they can have buzzed	I can have been buzzing you can have been buzzing she can have been buzzing we can have been buzzing you can have been buzzing they can have been buzzing

Negation

Simple form	V-ing form
I cannot buzz you cannot buzz she cannot buzz we cannot buzz you cannot buzz they cannot buzz	I cannot be buzzing you cannot be buzzing she cannot be buzzing we cannot be buzzing you cannot be buzzing they cannot be buzzing
Perfect	V-ing perfect
I cannot have buzzed you cannot have buzzed she cannot have buzzed we cannot have buzzed you cannot have buzzed they cannot have buzzed	I cannot have been buzzing you cannot have been buzzing she cannot have been buzzing we cannot have been buzzing you cannot have been buzzing they cannot have been buzzing

Interrogative form

Simple form	V-ing form
can I buzz? can you buzz? can she buzz? can we buzz? can you buzz? can they buzz?	can I be buzzing? can you be buzzing? can she be buzzing? can we be buzzing? can you be buzzing? can they be buzzing?
Perfect	V-ing perfect
can I have buzzed? can you have buzzed? can she have buzzed? can we have buzzed? can you have buzzed? can they have buzzed?	can I have been buzzing? can you have been buzzing? can she have been buzzing? can we have been buzzing? can you have been buzzing? can they have been buzzing?

Interro-negative form

Simple form	V-ing form
can I not buzz? can you not buzz? can she not buzz? can we not buzz? can you not buzz? can they not buzz?	can I not be buzzing? can you not be buzzing? can she not be buzzing? can we not be buzzing? can you not be buzzing? can they not be buzzing?
Perfect	V-ing perfect
can I not have buzzed? can you not have buzzed? can she not have buzzed? can we not have buzzed? can you not have buzzed? can they not have buzzed?	can I not have been buzzing? can you not have been buzzing? can she not have been buzzing? can we not have been buzzing? can you not have been buzzing? can they not have been buzzing?