English verb conjugation
SHOULD PRETRAIN

Regular verb: pretrain - pretrained - pretrained

Affirmation

Simple form	V-ing form
I'd pretrain you'd pretrain he'd pretrain we'd pretrain you'd pretrain they'd pretrain	I'd be pretraining you'd be pretraining he'd be pretraining we'd be pretraining you'd be pretraining they'd be pretraining
Perfect	V-ing perfect
I should've pretrained you should've pretrained he should've pretrained we should've pretrained you should've pretrained they should've pretrained	I should've been pretraining you should've been pretraining he should've been pretraining we should've been pretraining you should've been pretraining they should've been pretraining

Negation

Simple form	V-ing form
I shouldn't pretrain you shouldn't pretrain he shouldn't pretrain we shouldn't pretrain you shouldn't pretrain they shouldn't pretrain	I shouldn't be pretraining you shouldn't be pretraining he shouldn't be pretraining we shouldn't be pretraining you shouldn't be pretraining they shouldn't be pretraining
Perfect	V-ing perfect
I shouldn't have pretrained you shouldn't have pretrained he shouldn't have pretrained we shouldn't have pretrained you shouldn't have pretrained they shouldn't have pretrained	I shouldn't have been pretraining you shouldn't have been pretraining he shouldn't have been pretraining we shouldn't have been pretraining you shouldn't have been pretraining they shouldn't have been pretraining

Interrogative form

Simple form	V-ing form
should I pretrain? should you pretrain? should he pretrain? should we pretrain? should you pretrain? should they pretrain?	should I be pretraining? should you be pretraining? should he be pretraining? should we be pretraining? should you be pretraining? should they be pretraining?
Perfect	V-ing perfect
should I have pretrained? should you have pretrained? should he have pretrained? should we have pretrained? should you have pretrained? should they have pretrained?	should I have been pretraining? should you have been pretraining? should he have been pretraining? should we have been pretraining? should you have been pretraining? should they have been pretraining?

Interro-negative form

Simple form	V-ing form
shouldn't I pretrain? shouldn't you pretrain? shouldn't he pretrain? shouldn't we pretrain? shouldn't you pretrain? shouldn't they pretrain?	shouldn't I be pretraining? shouldn't you be pretraining? shouldn't he be pretraining? shouldn't we be pretraining? shouldn't you be pretraining? shouldn't they be pretraining?
Perfect	V-ing perfect
shouldn't I have pretrained? shouldn't you have pretrained? shouldn't he have pretrained? shouldn't we have pretrained? shouldn't you have pretrained? shouldn't they have pretrained?	shouldn't I have been pretraining? shouldn't you have been pretraining? shouldn't he have been pretraining? shouldn't we have been pretraining? shouldn't you have been pretraining? shouldn't they have been pretraining?