Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I may contend contend you may contend contend she may contend contend we may contend contend you may contend contend they may contend contend
V-ing form
I may be contend contending you may be contend contending she may be contend contending we may be contend contending you may be contend contending they may be contend contending
Perfect
I may have contend contended you may have contend contended she may have contend contended we may have contend contended you may have contend contended they may have contend contended
V-ing perfect
I may have been contend contending you may have been contend contending she may have been contend contending we may have been contend contending you may have been contend contending they may have been contend contending
Negation
Simple form
I mayn't contend contend you mayn't contend contend she mayn't contend contend we mayn't contend contend you mayn't contend contend they mayn't contend contend
V-ing form
I mayn't be contend contending you mayn't be contend contending she mayn't be contend contending we mayn't be contend contending you mayn't be contend contending they mayn't be contend contending
Perfect
I mayn't have contend contended you mayn't have contend contended she mayn't have contend contended we mayn't have contend contended you mayn't have contend contended they mayn't have contend contended
V-ing perfect
I mayn't have been contend contending you mayn't have been contend contending she mayn't have been contend contending we mayn't have been contend contending you mayn't have been contend contending they mayn't have been contend contending
Interrogative form
Simple form
may I contend contend? may you contend contend? may she contend contend? may we contend contend? may you contend contend? may they contend contend?
V-ing form
may I be contend contending? may you be contend contending? may she be contend contending? may we be contend contending? may you be contend contending? may they be contend contending?
Perfect
may I have contend contended? may you have contend contended? may she have contend contended? may we have contend contended? may you have contend contended? may they have contend contended?
V-ing perfect
may I have been contend contending? may you have been contend contending? may she have been contend contending? may we have been contend contending? may you have been contend contending? may they have been contend contending?
Interro-negative form
Simple form
mayn't I contend contend? mayn't you contend contend? mayn't she contend contend? mayn't we contend contend? mayn't you contend contend? mayn't they contend contend?
V-ing form
mayn't I be contend contending? mayn't you be contend contending? mayn't she be contend contending? mayn't we be contend contending? mayn't you be contend contending? mayn't they be contend contending?
Perfect
mayn't I have contend contended? mayn't you have contend contended? mayn't she have contend contended? mayn't we have contend contended? mayn't you have contend contended? mayn't they have contend contended?
V-ing perfect
mayn't I have been contend contending? mayn't you have been contend contending? mayn't she have been contend contending? mayn't we have been contend contending? mayn't you have been contend contending? mayn't they have been contend contending?