English verb conjugation
CAN CHAIN-SMOKE

Regular verb: chain-smoke - chain-smoked - chain-smoked

Affirmation

Simple form	V-ing form
I can chain-smoke you can chain-smoke he can chain-smoke we can chain-smoke you can chain-smoke they can chain-smoke	I can be chain-smoking you can be chain-smoking he can be chain-smoking we can be chain-smoking you can be chain-smoking they can be chain-smoking
Perfect	V-ing perfect
I can have chain-smoked you can have chain-smoked he can have chain-smoked we can have chain-smoked you can have chain-smoked they can have chain-smoked	I can have been chain-smoking you can have been chain-smoking he can have been chain-smoking we can have been chain-smoking you can have been chain-smoking they can have been chain-smoking

Negation

Simple form	V-ing form
I can't chain-smoke you can't chain-smoke he can't chain-smoke we can't chain-smoke you can't chain-smoke they can't chain-smoke	I can't be chain-smoking you can't be chain-smoking he can't be chain-smoking we can't be chain-smoking you can't be chain-smoking they can't be chain-smoking
Perfect	V-ing perfect
I can't have chain-smoked you can't have chain-smoked he can't have chain-smoked we can't have chain-smoked you can't have chain-smoked they can't have chain-smoked	I can't have been chain-smoking you can't have been chain-smoking he can't have been chain-smoking we can't have been chain-smoking you can't have been chain-smoking they can't have been chain-smoking

Interrogative form

Simple form	V-ing form
can I chain-smoke? can you chain-smoke? can he chain-smoke? can we chain-smoke? can you chain-smoke? can they chain-smoke?	can I be chain-smoking? can you be chain-smoking? can he be chain-smoking? can we be chain-smoking? can you be chain-smoking? can they be chain-smoking?
Perfect	V-ing perfect
can I have chain-smoked? can you have chain-smoked? can he have chain-smoked? can we have chain-smoked? can you have chain-smoked? can they have chain-smoked?	can I have been chain-smoking? can you have been chain-smoking? can he have been chain-smoking? can we have been chain-smoking? can you have been chain-smoking? can they have been chain-smoking?

Interro-negative form

Simple form	V-ing form
can't I chain-smoke? can't you chain-smoke? can't he chain-smoke? can't we chain-smoke? can't you chain-smoke? can't they chain-smoke?	can't I be chain-smoking? can't you be chain-smoking? can't he be chain-smoking? can't we be chain-smoking? can't you be chain-smoking? can't they be chain-smoking?
Perfect	V-ing perfect
can't I have chain-smoked? can't you have chain-smoked? can't he have chain-smoked? can't we have chain-smoked? can't you have chain-smoked? can't they have chain-smoked?	can't I have been chain-smoking? can't you have been chain-smoking? can't he have been chain-smoking? can't we have been chain-smoking? can't you have been chain-smoking? can't they have been chain-smoking?