may precaution
Verbo regular: precaution - precautioned- precautioned

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I may precaution
you may precaution
she may precaution
we may precaution
you may precaution
they may precaution 	I may be precautioning
you may be precautioning
she may be precautioning
we may be precautioning
you may be precautioning
they may be precautioning	I may have precautioned
you may have precautioned
she may have precautioned
we may have precautioned
you may have precautioned
they may have precautioned	I may have been precautioning
you may have been precautioning
she may have been precautioning
we may have been precautioning
you may have been precautioning
they may have been precautioning	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I may not precaution
you may not precaution
she may not precaution
we may not precaution
you may not precaution
they may not precaution 	I may not be precautioning
you may not be precautioning
she may not be precautioning
we may not be precautioning
you may not be precautioning
they may not be precautioning	I may not have precautioned
you may not have precautioned
she may not have precautioned
we may not have precautioned
you may not have precautioned
they may not have precautioned	I may not have been precautioning
you may not have been precautioning
she may not have been precautioning
we may not have been precautioning
you may not have been precautioning
they may not have been precautioning	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
may I precaution?
may you precaution?
may she precaution?
may we precaution?
may you precaution?
may they precaution? 	may I be precautioning?
may you be precautioning?
may she be precautioning?
may we be precautioning?
may you be precautioning?
may they be precautioning? 	may I have precautioned?
may you have precautioned?
may she have precautioned?
may we have precautioned?
may you have precautioned?
may they have precautioned? 	may I have been precautioning?
may you have been precautioning?
may she have been precautioning?
may we have been precautioning?
may you have been precautioning?
may they have been precautioning? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
may I not precaution?
may you not precaution?
may she not precaution?
may we not precaution?
may you not precaution?
may they not precaution? 	may I not be precautioning?
may you not be precautioning?
may she not be precautioning?
may we not be precautioning?
may you not be precautioning?
may they not be precautioning? 	may I not have precautioned?
may you not have precautioned?
may she not have precautioned?
may we not have precautioned?
may you not have precautioned?
may they not have precautioned? 	may I not have been precautioning?
may you not have been precautioning?
may she not have been precautioning?
may we not have been precautioning?
may you not have been precautioning?
may they not have been precautioning?