may screech
Verbo regular: screech - screeched- screeched

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I may screech
you may screech
he may screech
we may screech
you may screech
they may screech 	I may be screeching
you may be screeching
he may be screeching
we may be screeching
you may be screeching
they may be screeching	I may have screeched
you may have screeched
he may have screeched
we may have screeched
you may have screeched
they may have screeched	I may have been screeching
you may have been screeching
he may have been screeching
we may have been screeching
you may have been screeching
they may have been screeching	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mayn't screech
you mayn't screech
he mayn't screech
we mayn't screech
you mayn't screech
they mayn't screech 	I mayn't be screeching
you mayn't be screeching
he mayn't be screeching
we mayn't be screeching
you mayn't be screeching
they mayn't be screeching	I mayn't have screeched
you mayn't have screeched
he mayn't have screeched
we mayn't have screeched
you mayn't have screeched
they mayn't have screeched	I mayn't have been screeching
you mayn't have been screeching
he mayn't have been screeching
we mayn't have been screeching
you mayn't have been screeching
they mayn't have been screeching	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
may I screech?
may you screech?
may he screech?
may we screech?
may you screech?
may they screech? 	may I be screeching?
may you be screeching?
may he be screeching?
may we be screeching?
may you be screeching?
may they be screeching? 	may I have screeched?
may you have screeched?
may he have screeched?
may we have screeched?
may you have screeched?
may they have screeched? 	may I have been screeching?
may you have been screeching?
may he have been screeching?
may we have been screeching?
may you have been screeching?
may they have been screeching? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mayn't I screech?
mayn't you screech?
mayn't he screech?
mayn't we screech?
mayn't you screech?
mayn't they screech? 	mayn't I be screeching?
mayn't you be screeching?
mayn't he be screeching?
mayn't we be screeching?
mayn't you be screeching?
mayn't they be screeching? 	mayn't I have screeched?
mayn't you have screeched?
mayn't he have screeched?
mayn't we have screeched?
mayn't you have screeched?
mayn't they have screeched? 	mayn't I have been screeching?
mayn't you have been screeching?
mayn't he have been screeching?
mayn't we have been screeching?
mayn't you have been screeching?
mayn't they have been screeching?