could entrain
Regular verb: entrain - entrained- entrained

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could entrain
you could entrain
he could entrain
we could entrain
you could entrain
they could entrain 	I could be entraining
you could be entraining
he could be entraining
we could be entraining
you could be entraining
they could be entraining	I could have entrained
you could have entrained
he could have entrained
we could have entrained
you could have entrained
they could have entrained	I could have been entraining
you could have been entraining
he could have been entraining
we could have been entraining
you could have been entraining
they could have been entraining	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not entrain
you could not entrain
he could not entrain
we could not entrain
you could not entrain
they could not entrain 	I could not be entraining
you could not be entraining
he could not be entraining
we could not be entraining
you could not be entraining
they could not be entraining	I could not have entrained
you could not have entrained
he could not have entrained
we could not have entrained
you could not have entrained
they could not have entrained	I could not have been entraining
you could not have been entraining
he could not have been entraining
we could not have been entraining
you could not have been entraining
they could not have been entraining	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I entrain?
could you entrain?
could he entrain?
could we entrain?
could you entrain?
could they entrain? 	could I be entraining?
could you be entraining?
could he be entraining?
could we be entraining?
could you be entraining?
could they be entraining? 	could I have entrained?
could you have entrained?
could he have entrained?
could we have entrained?
could you have entrained?
could they have entrained? 	could I have been entraining?
could you have been entraining?
could he have been entraining?
could we have been entraining?
could you have been entraining?
could they have been entraining? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not entrain?
could you not entrain?
could he not entrain?
could we not entrain?
could you not entrain?
could they not entrain? 	could I not be entraining?
could you not be entraining?
could he not be entraining?
could we not be entraining?
could you not be entraining?
could they not be entraining? 	could I not have entrained?
could you not have entrained?
could he not have entrained?
could we not have entrained?
could you not have entrained?
could they not have entrained? 	could I not have been entraining?
could you not have been entraining?
could he not have been entraining?
could we not have been entraining?
could you not have been entraining?
could they not have been entraining?