may preexist
Verbo regular: preexist - preexisted- preexisted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I may preexist
you may preexist
he may preexist
we may preexist
you may preexist
they may preexist 	I may be preexisting
you may be preexisting
he may be preexisting
we may be preexisting
you may be preexisting
they may be preexisting	I may have preexisted
you may have preexisted
he may have preexisted
we may have preexisted
you may have preexisted
they may have preexisted	I may have been preexisting
you may have been preexisting
he may have been preexisting
we may have been preexisting
you may have been preexisting
they may have been preexisting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mayn't preexist
you mayn't preexist
he mayn't preexist
we mayn't preexist
you mayn't preexist
they mayn't preexist 	I mayn't be preexisting
you mayn't be preexisting
he mayn't be preexisting
we mayn't be preexisting
you mayn't be preexisting
they mayn't be preexisting	I mayn't have preexisted
you mayn't have preexisted
he mayn't have preexisted
we mayn't have preexisted
you mayn't have preexisted
they mayn't have preexisted	I mayn't have been preexisting
you mayn't have been preexisting
he mayn't have been preexisting
we mayn't have been preexisting
you mayn't have been preexisting
they mayn't have been preexisting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
may I preexist?
may you preexist?
may he preexist?
may we preexist?
may you preexist?
may they preexist? 	may I be preexisting?
may you be preexisting?
may he be preexisting?
may we be preexisting?
may you be preexisting?
may they be preexisting? 	may I have preexisted?
may you have preexisted?
may he have preexisted?
may we have preexisted?
may you have preexisted?
may they have preexisted? 	may I have been preexisting?
may you have been preexisting?
may he have been preexisting?
may we have been preexisting?
may you have been preexisting?
may they have been preexisting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mayn't I preexist?
mayn't you preexist?
mayn't he preexist?
mayn't we preexist?
mayn't you preexist?
mayn't they preexist? 	mayn't I be preexisting?
mayn't you be preexisting?
mayn't he be preexisting?
mayn't we be preexisting?
mayn't you be preexisting?
mayn't they be preexisting? 	mayn't I have preexisted?
mayn't you have preexisted?
mayn't he have preexisted?
mayn't we have preexisted?
mayn't you have preexisted?
mayn't they have preexisted? 	mayn't I have been preexisting?
mayn't you have been preexisting?
mayn't he have been preexisting?
mayn't we have been preexisting?
mayn't you have been preexisting?
mayn't they have been preexisting?