English verb conjugation
SHOULD PRETEST

Regular verb: pretest - pretested - pretested

Affirmation

Simple form	V-ing form
I should pretest you should pretest she should pretest we should pretest you should pretest they should pretest	I should be pretesting you should be pretesting she should be pretesting we should be pretesting you should be pretesting they should be pretesting
Perfect	V-ing perfect
I should have pretested you should have pretested she should have pretested we should have pretested you should have pretested they should have pretested	I should have been pretesting you should have been pretesting she should have been pretesting we should have been pretesting you should have been pretesting they should have been pretesting

Negation

Simple form	V-ing form
I should not pretest you should not pretest she should not pretest we should not pretest you should not pretest they should not pretest	I should not be pretesting you should not be pretesting she should not be pretesting we should not be pretesting you should not be pretesting they should not be pretesting
Perfect	V-ing perfect
I should not have pretested you should not have pretested she should not have pretested we should not have pretested you should not have pretested they should not have pretested	I should not have been pretesting you should not have been pretesting she should not have been pretesting we should not have been pretesting you should not have been pretesting they should not have been pretesting

Interrogative form

Simple form	V-ing form
should I pretest? should you pretest? should she pretest? should we pretest? should you pretest? should they pretest?	should I be pretesting? should you be pretesting? should she be pretesting? should we be pretesting? should you be pretesting? should they be pretesting?
Perfect	V-ing perfect
should I have pretested? should you have pretested? should she have pretested? should we have pretested? should you have pretested? should they have pretested?	should I have been pretesting? should you have been pretesting? should she have been pretesting? should we have been pretesting? should you have been pretesting? should they have been pretesting?

Interro-negative form

Simple form	V-ing form
should I not pretest? should you not pretest? should she not pretest? should we not pretest? should you not pretest? should they not pretest?	should I not be pretesting? should you not be pretesting? should she not be pretesting? should we not be pretesting? should you not be pretesting? should they not be pretesting?
Perfect	V-ing perfect
should I not have pretested? should you not have pretested? should she not have pretested? should we not have pretested? should you not have pretested? should they not have pretested?	should I not have been pretesting? should you not have been pretesting? should she not have been pretesting? should we not have been pretesting? should you not have been pretesting? should they not have been pretesting?