English verb conjugation
SHOULD ATTAIN

Regular verb: attain - attained - attained

Affirmation

Simple form	V-ing form
I should attain you should attain she should attain we should attain you should attain they should attain	I should be attaining you should be attaining she should be attaining we should be attaining you should be attaining they should be attaining
Perfect	V-ing perfect
I should have attained you should have attained she should have attained we should have attained you should have attained they should have attained	I should have been attaining you should have been attaining she should have been attaining we should have been attaining you should have been attaining they should have been attaining

Negation

Simple form	V-ing form
I should not attain you should not attain she should not attain we should not attain you should not attain they should not attain	I should not be attaining you should not be attaining she should not be attaining we should not be attaining you should not be attaining they should not be attaining
Perfect	V-ing perfect
I should not have attained you should not have attained she should not have attained we should not have attained you should not have attained they should not have attained	I should not have been attaining you should not have been attaining she should not have been attaining we should not have been attaining you should not have been attaining they should not have been attaining

Interrogative form

Simple form	V-ing form
should I attain? should you attain? should she attain? should we attain? should you attain? should they attain?	should I be attaining? should you be attaining? should she be attaining? should we be attaining? should you be attaining? should they be attaining?
Perfect	V-ing perfect
should I have attained? should you have attained? should she have attained? should we have attained? should you have attained? should they have attained?	should I have been attaining? should you have been attaining? should she have been attaining? should we have been attaining? should you have been attaining? should they have been attaining?

Interro-negative form

Simple form	V-ing form
should I not attain? should you not attain? should she not attain? should we not attain? should you not attain? should they not attain?	should I not be attaining? should you not be attaining? should she not be attaining? should we not be attaining? should you not be attaining? should they not be attaining?
Perfect	V-ing perfect
should I not have attained? should you not have attained? should she not have attained? should we not have attained? should you not have attained? should they not have attained?	should I not have been attaining? should you not have been attaining? should she not have been attaining? should we not have been attaining? should you not have been attaining? should they not have been attaining?