I should extemporize you should extemporize he should extemporize we should extemporize you should extemporize they should extemporize
V-ing form
I should be extemporizing you should be extemporizing he should be extemporizing we should be extemporizing you should be extemporizing they should be extemporizing
Perfect
I should have extemporized you should have extemporized he should have extemporized we should have extemporized you should have extemporized they should have extemporized
V-ing perfect
I should have been extemporizing you should have been extemporizing he should have been extemporizing we should have been extemporizing you should have been extemporizing they should have been extemporizing
Negation
Simple form
I should not extemporize you should not extemporize he should not extemporize we should not extemporize you should not extemporize they should not extemporize
V-ing form
I should not be extemporizing you should not be extemporizing he should not be extemporizing we should not be extemporizing you should not be extemporizing they should not be extemporizing
Perfect
I should not have extemporized you should not have extemporized he should not have extemporized we should not have extemporized you should not have extemporized they should not have extemporized
V-ing perfect
I should not have been extemporizing you should not have been extemporizing he should not have been extemporizing we should not have been extemporizing you should not have been extemporizing they should not have been extemporizing
Interrogative form
Simple form
should I extemporize? should you extemporize? should he extemporize? should we extemporize? should you extemporize? should they extemporize?
V-ing form
should I be extemporizing? should you be extemporizing? should he be extemporizing? should we be extemporizing? should you be extemporizing? should they be extemporizing?
Perfect
should I have extemporized? should you have extemporized? should he have extemporized? should we have extemporized? should you have extemporized? should they have extemporized?
V-ing perfect
should I have been extemporizing? should you have been extemporizing? should he have been extemporizing? should we have been extemporizing? should you have been extemporizing? should they have been extemporizing?
Interro-negative form
Simple form
should I not extemporize? should you not extemporize? should he not extemporize? should we not extemporize? should you not extemporize? should they not extemporize?
V-ing form
should I not be extemporizing? should you not be extemporizing? should he not be extemporizing? should we not be extemporizing? should you not be extemporizing? should they not be extemporizing?
Perfect
should I not have extemporized? should you not have extemporized? should he not have extemporized? should we not have extemporized? should you not have extemporized? should they not have extemporized?
V-ing perfect
should I not have been extemporizing? should you not have been extemporizing? should he not have been extemporizing? should we not have been extemporizing? should you not have been extemporizing? should they not have been extemporizing?