may precess
Verbo regular: precess - precessed- precessed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I may precess
you may precess
he may precess
we may precess
you may precess
they may precess 	I may be precessing
you may be precessing
he may be precessing
we may be precessing
you may be precessing
they may be precessing	I may have precessed
you may have precessed
he may have precessed
we may have precessed
you may have precessed
they may have precessed	I may have been precessing
you may have been precessing
he may have been precessing
we may have been precessing
you may have been precessing
they may have been precessing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mayn't precess
you mayn't precess
he mayn't precess
we mayn't precess
you mayn't precess
they mayn't precess 	I mayn't be precessing
you mayn't be precessing
he mayn't be precessing
we mayn't be precessing
you mayn't be precessing
they mayn't be precessing	I mayn't have precessed
you mayn't have precessed
he mayn't have precessed
we mayn't have precessed
you mayn't have precessed
they mayn't have precessed	I mayn't have been precessing
you mayn't have been precessing
he mayn't have been precessing
we mayn't have been precessing
you mayn't have been precessing
they mayn't have been precessing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
may I precess?
may you precess?
may he precess?
may we precess?
may you precess?
may they precess? 	may I be precessing?
may you be precessing?
may he be precessing?
may we be precessing?
may you be precessing?
may they be precessing? 	may I have precessed?
may you have precessed?
may he have precessed?
may we have precessed?
may you have precessed?
may they have precessed? 	may I have been precessing?
may you have been precessing?
may he have been precessing?
may we have been precessing?
may you have been precessing?
may they have been precessing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mayn't I precess?
mayn't you precess?
mayn't he precess?
mayn't we precess?
mayn't you precess?
mayn't they precess? 	mayn't I be precessing?
mayn't you be precessing?
mayn't he be precessing?
mayn't we be precessing?
mayn't you be precessing?
mayn't they be precessing? 	mayn't I have precessed?
mayn't you have precessed?
mayn't he have precessed?
mayn't we have precessed?
mayn't you have precessed?
mayn't they have precessed? 	mayn't I have been precessing?
mayn't you have been precessing?
mayn't he have been precessing?
mayn't we have been precessing?
mayn't you have been precessing?
mayn't they have been precessing?