English verb conjugation
MAY CHALLENGE

Regular verb: challenge - challenged - challenged

Affirmation

Simple form	V-ing form
I may challenge you may challenge he may challenge we may challenge you may challenge they may challenge	I may be challenging you may be challenging he may be challenging we may be challenging you may be challenging they may be challenging
Perfect	V-ing perfect
I may have challenged you may have challenged he may have challenged we may have challenged you may have challenged they may have challenged	I may have been challenging you may have been challenging he may have been challenging we may have been challenging you may have been challenging they may have been challenging

Negation

Simple form	V-ing form
I mayn't challenge you mayn't challenge he mayn't challenge we mayn't challenge you mayn't challenge they mayn't challenge	I mayn't be challenging you mayn't be challenging he mayn't be challenging we mayn't be challenging you mayn't be challenging they mayn't be challenging
Perfect	V-ing perfect
I mayn't have challenged you mayn't have challenged he mayn't have challenged we mayn't have challenged you mayn't have challenged they mayn't have challenged	I mayn't have been challenging you mayn't have been challenging he mayn't have been challenging we mayn't have been challenging you mayn't have been challenging they mayn't have been challenging

Interrogative form

Simple form	V-ing form
may I challenge? may you challenge? may he challenge? may we challenge? may you challenge? may they challenge?	may I be challenging? may you be challenging? may he be challenging? may we be challenging? may you be challenging? may they be challenging?
Perfect	V-ing perfect
may I have challenged? may you have challenged? may he have challenged? may we have challenged? may you have challenged? may they have challenged?	may I have been challenging? may you have been challenging? may he have been challenging? may we have been challenging? may you have been challenging? may they have been challenging?

Interro-negative form

Simple form	V-ing form
mayn't I challenge? mayn't you challenge? mayn't he challenge? mayn't we challenge? mayn't you challenge? mayn't they challenge?	mayn't I be challenging? mayn't you be challenging? mayn't he be challenging? mayn't we be challenging? mayn't you be challenging? mayn't they be challenging?
Perfect	V-ing perfect
mayn't I have challenged? mayn't you have challenged? mayn't he have challenged? mayn't we have challenged? mayn't you have challenged? mayn't they have challenged?	mayn't I have been challenging? mayn't you have been challenging? mayn't he have been challenging? mayn't we have been challenging? mayn't you have been challenging? mayn't they have been challenging?