can trench
Verbo regular: trench - trenched- trenched

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can trench
you can trench
he can trench
we can trench
you can trench
they can trench 	I can be trenching
you can be trenching
he can be trenching
we can be trenching
you can be trenching
they can be trenching	I can have trenched
you can have trenched
he can have trenched
we can have trenched
you can have trenched
they can have trenched	I can have been trenching
you can have been trenching
he can have been trenching
we can have been trenching
you can have been trenching
they can have been trenching	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot trench
you cannot trench
he cannot trench
we cannot trench
you cannot trench
they cannot trench 	I cannot be trenching
you cannot be trenching
he cannot be trenching
we cannot be trenching
you cannot be trenching
they cannot be trenching	I cannot have trenched
you cannot have trenched
he cannot have trenched
we cannot have trenched
you cannot have trenched
they cannot have trenched	I cannot have been trenching
you cannot have been trenching
he cannot have been trenching
we cannot have been trenching
you cannot have been trenching
they cannot have been trenching	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I trench?
can you trench?
can he trench?
can we trench?
can you trench?
can they trench? 	can I be trenching?
can you be trenching?
can he be trenching?
can we be trenching?
can you be trenching?
can they be trenching? 	can I have trenched?
can you have trenched?
can he have trenched?
can we have trenched?
can you have trenched?
can they have trenched? 	can I have been trenching?
can you have been trenching?
can he have been trenching?
can we have been trenching?
can you have been trenching?
can they have been trenching? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not trench?
can you not trench?
can he not trench?
can we not trench?
can you not trench?
can they not trench? 	can I not be trenching?
can you not be trenching?
can he not be trenching?
can we not be trenching?
can you not be trenching?
can they not be trenching? 	can I not have trenched?
can you not have trenched?
can he not have trenched?
can we not have trenched?
can you not have trenched?
can they not have trenched? 	can I not have been trenching?
can you not have been trenching?
can he not have been trenching?
can we not have been trenching?
can you not have been trenching?
can they not have been trenching?