English verb conjugation
CAN DRINK

Irregular verb: drink - drank - drunk

Affirmation

Simple form	V-ing form
I can drink you can drink he can drink we can drink you can drink they can drink	I can be drinking you can be drinking he can be drinking we can be drinking you can be drinking they can be drinking
Perfect	V-ing perfect
I can have drunk you can have drunk he can have drunk we can have drunk you can have drunk they can have drunk	I can have been drinking you can have been drinking he can have been drinking we can have been drinking you can have been drinking they can have been drinking

Negation

Simple form	V-ing form
I cannot drink you cannot drink he cannot drink we cannot drink you cannot drink they cannot drink	I cannot be drinking you cannot be drinking he cannot be drinking we cannot be drinking you cannot be drinking they cannot be drinking
Perfect	V-ing perfect
I cannot have drunk you cannot have drunk he cannot have drunk we cannot have drunk you cannot have drunk they cannot have drunk	I cannot have been drinking you cannot have been drinking he cannot have been drinking we cannot have been drinking you cannot have been drinking they cannot have been drinking

Interrogative form

Simple form	V-ing form
can I drink? can you drink? can he drink? can we drink? can you drink? can they drink?	can I be drinking? can you be drinking? can he be drinking? can we be drinking? can you be drinking? can they be drinking?
Perfect	V-ing perfect
can I have drunk? can you have drunk? can he have drunk? can we have drunk? can you have drunk? can they have drunk?	can I have been drinking? can you have been drinking? can he have been drinking? can we have been drinking? can you have been drinking? can they have been drinking?

Interro-negative form

Simple form	V-ing form
can I not drink? can you not drink? can he not drink? can we not drink? can you not drink? can they not drink?	can I not be drinking? can you not be drinking? can he not be drinking? can we not be drinking? can you not be drinking? can they not be drinking?
Perfect	V-ing perfect
can I not have drunk? can you not have drunk? can he not have drunk? can we not have drunk? can you not have drunk? can they not have drunk?	can I not have been drinking? can you not have been drinking? can he not have been drinking? can we not have been drinking? can you not have been drinking? can they not have been drinking?