English verb conjugation
MAY CHAIN-SMOKE

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

Affirmation

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

Negation

Simple form	V-ing form
I may not chain-smoke you may not chain-smoke he may not chain-smoke we may not chain-smoke you may not chain-smoke they may not chain-smoke	I may not be chain-smoking you may not be chain-smoking he may not be chain-smoking we may not be chain-smoking you may not be chain-smoking they may not be chain-smoking
Perfect	V-ing perfect
I may not have chain-smoked you may not have chain-smoked he may not have chain-smoked we may not have chain-smoked you may not have chain-smoked they may not have chain-smoked	I may not have been chain-smoking you may not have been chain-smoking he may not have been chain-smoking we may not have been chain-smoking you may not have been chain-smoking they may not have been chain-smoking

Interrogative form

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

Interro-negative form

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