English verb conjugation
MAY PUNCTURE

Regular verb: puncture - punctured - punctured

Affirmation

Simple form	V-ing form
I may puncture you may puncture he may puncture we may puncture you may puncture they may puncture	I may be puncturing you may be puncturing he may be puncturing we may be puncturing you may be puncturing they may be puncturing
Perfect	V-ing perfect
I may have punctured you may have punctured he may have punctured we may have punctured you may have punctured they may have punctured	I may have been puncturing you may have been puncturing he may have been puncturing we may have been puncturing you may have been puncturing they may have been puncturing

Negation

Simple form	V-ing form
I mayn't puncture you mayn't puncture he mayn't puncture we mayn't puncture you mayn't puncture they mayn't puncture	I mayn't be puncturing you mayn't be puncturing he mayn't be puncturing we mayn't be puncturing you mayn't be puncturing they mayn't be puncturing
Perfect	V-ing perfect
I mayn't have punctured you mayn't have punctured he mayn't have punctured we mayn't have punctured you mayn't have punctured they mayn't have punctured	I mayn't have been puncturing you mayn't have been puncturing he mayn't have been puncturing we mayn't have been puncturing you mayn't have been puncturing they mayn't have been puncturing

Interrogative form

Simple form	V-ing form
may I puncture? may you puncture? may he puncture? may we puncture? may you puncture? may they puncture?	may I be puncturing? may you be puncturing? may he be puncturing? may we be puncturing? may you be puncturing? may they be puncturing?
Perfect	V-ing perfect
may I have punctured? may you have punctured? may he have punctured? may we have punctured? may you have punctured? may they have punctured?	may I have been puncturing? may you have been puncturing? may he have been puncturing? may we have been puncturing? may you have been puncturing? may they have been puncturing?

Interro-negative form

Simple form	V-ing form
mayn't I puncture? mayn't you puncture? mayn't he puncture? mayn't we puncture? mayn't you puncture? mayn't they puncture?	mayn't I be puncturing? mayn't you be puncturing? mayn't he be puncturing? mayn't we be puncturing? mayn't you be puncturing? mayn't they be puncturing?
Perfect	V-ing perfect
mayn't I have punctured? mayn't you have punctured? mayn't he have punctured? mayn't we have punctured? mayn't you have punctured? mayn't they have punctured?	mayn't I have been puncturing? mayn't you have been puncturing? mayn't he have been puncturing? mayn't we have been puncturing? mayn't you have been puncturing? mayn't they have been puncturing?