I should approximate you should approximate he should approximate we should approximate you should approximate they should approximate
V-ing form
I should be approximating you should be approximating he should be approximating we should be approximating you should be approximating they should be approximating
Perfect
I should have approximated you should have approximated he should have approximated we should have approximated you should have approximated they should have approximated
V-ing perfect
I should have been approximating you should have been approximating he should have been approximating we should have been approximating you should have been approximating they should have been approximating
Negation
Simple form
I should not approximate you should not approximate he should not approximate we should not approximate you should not approximate they should not approximate
V-ing form
I should not be approximating you should not be approximating he should not be approximating we should not be approximating you should not be approximating they should not be approximating
Perfect
I should not have approximated you should not have approximated he should not have approximated we should not have approximated you should not have approximated they should not have approximated
V-ing perfect
I should not have been approximating you should not have been approximating he should not have been approximating we should not have been approximating you should not have been approximating they should not have been approximating
Interrogative form
Simple form
should I approximate? should you approximate? should he approximate? should we approximate? should you approximate? should they approximate?
V-ing form
should I be approximating? should you be approximating? should he be approximating? should we be approximating? should you be approximating? should they be approximating?
Perfect
should I have approximated? should you have approximated? should he have approximated? should we have approximated? should you have approximated? should they have approximated?
V-ing perfect
should I have been approximating? should you have been approximating? should he have been approximating? should we have been approximating? should you have been approximating? should they have been approximating?
Interro-negative form
Simple form
should I not approximate? should you not approximate? should he not approximate? should we not approximate? should you not approximate? should they not approximate?
V-ing form
should I not be approximating? should you not be approximating? should he not be approximating? should we not be approximating? should you not be approximating? should they not be approximating?
Perfect
should I not have approximated? should you not have approximated? should he not have approximated? should we not have approximated? should you not have approximated? should they not have approximated?
V-ing perfect
should I not have been approximating? should you not have been approximating? should he not have been approximating? should we not have been approximating? should you not have been approximating? should they not have been approximating?