could pretrain
Regular verb: pretrain - pretrained- pretrained

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could pretrain
you could pretrain
she could pretrain
we could pretrain
you could pretrain
they could pretrain 	I could be pretraining
you could be pretraining
she could be pretraining
we could be pretraining
you could be pretraining
they could be pretraining	I could have pretrained
you could have pretrained
she could have pretrained
we could have pretrained
you could have pretrained
they could have pretrained	I could have been pretraining
you could have been pretraining
she could have been pretraining
we could have been pretraining
you could have been pretraining
they could have been pretraining	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not pretrain
you could not pretrain
she could not pretrain
we could not pretrain
you could not pretrain
they could not pretrain 	I could not be pretraining
you could not be pretraining
she could not be pretraining
we could not be pretraining
you could not be pretraining
they could not be pretraining	I could not have pretrained
you could not have pretrained
she could not have pretrained
we could not have pretrained
you could not have pretrained
they could not have pretrained	I could not have been pretraining
you could not have been pretraining
she could not have been pretraining
we could not have been pretraining
you could not have been pretraining
they could not have been pretraining	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I pretrain?
could you pretrain?
could she pretrain?
could we pretrain?
could you pretrain?
could they pretrain? 	could I be pretraining?
could you be pretraining?
could she be pretraining?
could we be pretraining?
could you be pretraining?
could they be pretraining? 	could I have pretrained?
could you have pretrained?
could she have pretrained?
could we have pretrained?
could you have pretrained?
could they have pretrained? 	could I have been pretraining?
could you have been pretraining?
could she have been pretraining?
could we have been pretraining?
could you have been pretraining?
could they have been pretraining? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not pretrain?
could you not pretrain?
could she not pretrain?
could we not pretrain?
could you not pretrain?
could they not pretrain? 	could I not be pretraining?
could you not be pretraining?
could she not be pretraining?
could we not be pretraining?
could you not be pretraining?
could they not be pretraining? 	could I not have pretrained?
could you not have pretrained?
could she not have pretrained?
could we not have pretrained?
could you not have pretrained?
could they not have pretrained? 	could I not have been pretraining?
could you not have been pretraining?
could she not have been pretraining?
could we not have been pretraining?
could you not have been pretraining?
could they not have been pretraining?