English verb conjugation
SHOULD SUBTEND

Regular verb: subtend - subtended - subtended

Affirmation

Simple form	V-ing form
I should subtend you should subtend he should subtend we should subtend you should subtend they should subtend	I should be subtending you should be subtending he should be subtending we should be subtending you should be subtending they should be subtending
Perfect	V-ing perfect
I should have subtended you should have subtended he should have subtended we should have subtended you should have subtended they should have subtended	I should have been subtending you should have been subtending he should have been subtending we should have been subtending you should have been subtending they should have been subtending

Negation

Simple form	V-ing form
I should not subtend you should not subtend he should not subtend we should not subtend you should not subtend they should not subtend	I should not be subtending you should not be subtending he should not be subtending we should not be subtending you should not be subtending they should not be subtending
Perfect	V-ing perfect
I should not have subtended you should not have subtended he should not have subtended we should not have subtended you should not have subtended they should not have subtended	I should not have been subtending you should not have been subtending he should not have been subtending we should not have been subtending you should not have been subtending they should not have been subtending

Interrogative form

Simple form	V-ing form
should I subtend? should you subtend? should he subtend? should we subtend? should you subtend? should they subtend?	should I be subtending? should you be subtending? should he be subtending? should we be subtending? should you be subtending? should they be subtending?
Perfect	V-ing perfect
should I have subtended? should you have subtended? should he have subtended? should we have subtended? should you have subtended? should they have subtended?	should I have been subtending? should you have been subtending? should he have been subtending? should we have been subtending? should you have been subtending? should they have been subtending?

Interro-negative form

Simple form	V-ing form
should I not subtend? should you not subtend? should he not subtend? should we not subtend? should you not subtend? should they not subtend?	should I not be subtending? should you not be subtending? should he not be subtending? should we not be subtending? should you not be subtending? should they not be subtending?
Perfect	V-ing perfect
should I not have subtended? should you not have subtended? should he not have subtended? should we not have subtended? should you not have subtended? should they not have subtended?	should I not have been subtending? should you not have been subtending? should he not have been subtending? should we not have been subtending? should you not have been subtending? should they not have been subtending?