may cause
Verbo regular: cause - caused- caused

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I may cause
you may cause
he may cause
we may cause
you may cause
they may cause 	I may be causing
you may be causing
he may be causing
we may be causing
you may be causing
they may be causing	I may have caused
you may have caused
he may have caused
we may have caused
you may have caused
they may have caused	I may have been causing
you may have been causing
he may have been causing
we may have been causing
you may have been causing
they may have been causing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I may not cause
you may not cause
he may not cause
we may not cause
you may not cause
they may not cause 	I may not be causing
you may not be causing
he may not be causing
we may not be causing
you may not be causing
they may not be causing	I may not have caused
you may not have caused
he may not have caused
we may not have caused
you may not have caused
they may not have caused	I may not have been causing
you may not have been causing
he may not have been causing
we may not have been causing
you may not have been causing
they may not have been causing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
may I cause?
may you cause?
may he cause?
may we cause?
may you cause?
may they cause? 	may I be causing?
may you be causing?
may he be causing?
may we be causing?
may you be causing?
may they be causing? 	may I have caused?
may you have caused?
may he have caused?
may we have caused?
may you have caused?
may they have caused? 	may I have been causing?
may you have been causing?
may he have been causing?
may we have been causing?
may you have been causing?
may they have been causing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
may I not cause?
may you not cause?
may he not cause?
may we not cause?
may you not cause?
may they not cause? 	may I not be causing?
may you not be causing?
may he not be causing?
may we not be causing?
may you not be causing?
may they not be causing? 	may I not have caused?
may you not have caused?
may he not have caused?
may we not have caused?
may you not have caused?
may they not have caused? 	may I not have been causing?
may you not have been causing?
may he not have been causing?
may we not have been causing?
may you not have been causing?
may they not have been causing?