Conjugação do verbo inglês
MAY BACKCROSS

Verbo regular: backcross - backcrossed - backcrossed

Afirmação

Forma simple	Forma com V-ing
I may backcross you may backcross she may backcross we may backcross you may backcross they may backcross	I may be backcrossing you may be backcrossing she may be backcrossing we may be backcrossing you may be backcrossing they may be backcrossing
Perfeito	Perfeito com V-ing
I may have backcrossed you may have backcrossed she may have backcrossed we may have backcrossed you may have backcrossed they may have backcrossed	I may have been backcrossing you may have been backcrossing she may have been backcrossing we may have been backcrossing you may have been backcrossing they may have been backcrossing

Negação

Forma simple	Forma com V-ing
I mayn't backcross you mayn't backcross she mayn't backcross we mayn't backcross you mayn't backcross they mayn't backcross	I mayn't be backcrossing you mayn't be backcrossing she mayn't be backcrossing we mayn't be backcrossing you mayn't be backcrossing they mayn't be backcrossing
Perfeito	Perfeito com V-ing
I mayn't have backcrossed you mayn't have backcrossed she mayn't have backcrossed we mayn't have backcrossed you mayn't have backcrossed they mayn't have backcrossed	I mayn't have been backcrossing you mayn't have been backcrossing she mayn't have been backcrossing we mayn't have been backcrossing you mayn't have been backcrossing they mayn't have been backcrossing

Forma interrogativa

Forma simple	Forma com V-ing
may I backcross? may you backcross? may she backcross? may we backcross? may you backcross? may they backcross?	may I be backcrossing? may you be backcrossing? may she be backcrossing? may we be backcrossing? may you be backcrossing? may they be backcrossing?
Perfeito	Perfeito com V-ing
may I have backcrossed? may you have backcrossed? may she have backcrossed? may we have backcrossed? may you have backcrossed? may they have backcrossed?	may I have been backcrossing? may you have been backcrossing? may she have been backcrossing? may we have been backcrossing? may you have been backcrossing? may they have been backcrossing?

Forma interro-Negação

Forma simple	Forma com V-ing
mayn't I backcross? mayn't you backcross? mayn't she backcross? mayn't we backcross? mayn't you backcross? mayn't they backcross?	mayn't I be backcrossing? mayn't you be backcrossing? mayn't she be backcrossing? mayn't we be backcrossing? mayn't you be backcrossing? mayn't they be backcrossing?
Perfeito	Perfeito com V-ing
mayn't I have backcrossed? mayn't you have backcrossed? mayn't she have backcrossed? mayn't we have backcrossed? mayn't you have backcrossed? mayn't they have backcrossed?	mayn't I have been backcrossing? mayn't you have been backcrossing? mayn't she have been backcrossing? mayn't we have been backcrossing? mayn't you have been backcrossing? mayn't they have been backcrossing?