English verb conjugation
SHOULD TRAIN

Regular verb: train - trained - trained

Affirmation

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

Negation

Simple form	V-ing form
I shouldn't train you shouldn't train he shouldn't train we shouldn't train you shouldn't train they shouldn't train	I shouldn't be training you shouldn't be training he shouldn't be training we shouldn't be training you shouldn't be training they shouldn't be training
Perfect	V-ing perfect
I shouldn't have trained you shouldn't have trained he shouldn't have trained we shouldn't have trained you shouldn't have trained they shouldn't have trained	I shouldn't have been training you shouldn't have been training he shouldn't have been training we shouldn't have been training you shouldn't have been training they shouldn't 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
shouldn't I train? shouldn't you train? shouldn't he train? shouldn't we train? shouldn't you train? shouldn't they train?	shouldn't I be training? shouldn't you be training? shouldn't he be training? shouldn't we be training? shouldn't you be training? shouldn't they be training?
Perfect	V-ing perfect
shouldn't I have trained? shouldn't you have trained? shouldn't he have trained? shouldn't we have trained? shouldn't you have trained? shouldn't they have trained?	shouldn't I have been training? shouldn't you have been training? shouldn't he have been training? shouldn't we have been training? shouldn't you have been training? shouldn't they have been training?