may contend
Regular verb: contend - contended- contended

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may contend
you may contend
she may contend
we may contend
you may contend
they may contend 	I may be contending
you may be contending
she may be contending
we may be contending
you may be contending
they may be contending	I may have contended
you may have contended
she may have contended
we may have contended
you may have contended
they may have contended	I may have been contending
you may have been contending
she may have been contending
we may have been contending
you may have been contending
they may have been contending	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't contend
you mayn't contend
she mayn't contend
we mayn't contend
you mayn't contend
they mayn't contend 	I mayn't be contending
you mayn't be contending
she mayn't be contending
we mayn't be contending
you mayn't be contending
they mayn't be contending	I mayn't have contended
you mayn't have contended
she mayn't have contended
we mayn't have contended
you mayn't have contended
they mayn't have contended	I mayn't have been contending
you mayn't have been contending
she mayn't have been contending
we mayn't have been contending
you mayn't have been contending
they mayn't have been contending	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I contend?
may you contend?
may she contend?
may we contend?
may you contend?
may they contend? 	may I be contending?
may you be contending?
may she be contending?
may we be contending?
may you be contending?
may they be contending? 	may I have contended?
may you have contended?
may she have contended?
may we have contended?
may you have contended?
may they have contended? 	may I have been contending?
may you have been contending?
may she have been contending?
may we have been contending?
may you have been contending?
may they have been contending? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I contend?
mayn't you contend?
mayn't she contend?
mayn't we contend?
mayn't you contend?
mayn't they contend? 	mayn't I be contending?
mayn't you be contending?
mayn't she be contending?
mayn't we be contending?
mayn't you be contending?
mayn't they be contending? 	mayn't I have contended?
mayn't you have contended?
mayn't she have contended?
mayn't we have contended?
mayn't you have contended?
mayn't they have contended? 	mayn't I have been contending?
mayn't you have been contending?
mayn't she have been contending?
mayn't we have been contending?
mayn't you have been contending?
mayn't they have been contending?