English verb conjugation
COULD ENTRAIN

Regular verb: entrain - entrained - entrained

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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
I couldn't entrain you couldn't entrain he couldn't entrain we couldn't entrain you couldn't entrain they couldn't entrain	I couldn't be entraining you couldn't be entraining he couldn't be entraining we couldn't be entraining you couldn't be entraining they couldn't be entraining
Perfect	V-ing perfect
I couldn't have entrained you couldn't have entrained he couldn't have entrained we couldn't have entrained you couldn't have entrained they couldn't have entrained	I couldn't have been entraining you couldn't have been entraining he couldn't have been entraining we couldn't have been entraining you couldn't have been entraining they couldn't have been entraining

Interrogative form

Simple form	V-ing form
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?
Perfect	V-ing perfect
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
couldn't I entrain? couldn't you entrain? couldn't he entrain? couldn't we entrain? couldn't you entrain? couldn't they entrain?	couldn't I be entraining? couldn't you be entraining? couldn't he be entraining? couldn't we be entraining? couldn't you be entraining? couldn't they be entraining?
Perfect	V-ing perfect
couldn't I have entrained? couldn't you have entrained? couldn't he have entrained? couldn't we have entrained? couldn't you have entrained? couldn't they have entrained?	couldn't I have been entraining? couldn't you have been entraining? couldn't he have been entraining? couldn't we have been entraining? couldn't you have been entraining? couldn't they have been entraining?