English verb conjugation
SHOULD TRAIN

Regular verb: train - trained - trained

Affirmation

Simple form	V-ing form
I should train you should train he should train we should train you should train they should train	I should be training you should be training he should be training we should be training you should be training they should be training
Perfect	V-ing perfect
I should have trained you should have trained he should have trained we should have trained you should have trained they should have trained	I should have been training you should have been training he should have been training we should have been training you should have been training they should have been training

Negation

Simple form	V-ing form
I should not train you should not train he should not train we should not train you should not train they should not train	I should not be training you should not be training he should not be training we should not be training you should not be training they should not be training
Perfect	V-ing perfect
I should not have trained you should not have trained he should not have trained we should not have trained you should not have trained they should not have trained	I should not have been training you should not have been training he should not have been training we should not have been training you should not have been training they should not have been training

Interrogative form

Simple form	V-ing form
should I train? should you train? should he train? should we train? should you train? should they train?	should I be training? should you be training? should he be training? should we be training? should you be training? should they be training?
Perfect	V-ing perfect
should I have trained? should you have trained? should he have trained? should we have trained? should you have trained? should they have trained?	should I have been training? should you have been training? should he have been training? should we have been training? should you have been training? should they have been training?

Interro-negative form

Simple form	V-ing form
should I not train? should you not train? should he not train? should we not train? should you not train? should they not train?	should I not be training? should you not be training? should he not be training? should we not be training? should you not be training? should they not be training?
Perfect	V-ing perfect
should I not have trained? should you not have trained? should he not have trained? should we not have trained? should you not have trained? should they not have trained?	should I not have been training? should you not have been training? should he not have been training? should we not have been training? should you not have been training? should they not have been training?