I should nod you should nod he should nod we should nod you should nod they should nod
V-ing form
I should be nodding you should be nodding he should be nodding we should be nodding you should be nodding they should be nodding
Perfect
I should have nodded you should have nodded he should have nodded we should have nodded you should have nodded they should have nodded
V-ing perfect
I should have been nodding you should have been nodding he should have been nodding we should have been nodding you should have been nodding they should have been nodding
Negation
Simple form
I should not nod you should not nod he should not nod we should not nod you should not nod they should not nod
V-ing form
I should not be nodding you should not be nodding he should not be nodding we should not be nodding you should not be nodding they should not be nodding
Perfect
I should not have nodded you should not have nodded he should not have nodded we should not have nodded you should not have nodded they should not have nodded
V-ing perfect
I should not have been nodding you should not have been nodding he should not have been nodding we should not have been nodding you should not have been nodding they should not have been nodding
Interrogative form
Simple form
should I nod? should you nod? should he nod? should we nod? should you nod? should they nod?
V-ing form
should I be nodding? should you be nodding? should he be nodding? should we be nodding? should you be nodding? should they be nodding?
Perfect
should I have nodded? should you have nodded? should he have nodded? should we have nodded? should you have nodded? should they have nodded?
V-ing perfect
should I have been nodding? should you have been nodding? should he have been nodding? should we have been nodding? should you have been nodding? should they have been nodding?
Interro-negative form
Simple form
should I not nod? should you not nod? should he not nod? should we not nod? should you not nod? should they not nod?
V-ing form
should I not be nodding? should you not be nodding? should he not be nodding? should we not be nodding? should you not be nodding? should they not be nodding?
Perfect
should I not have nodded? should you not have nodded? should he not have nodded? should we not have nodded? should you not have nodded? should they not have nodded?
V-ing perfect
should I not have been nodding? should you not have been nodding? should he not have been nodding? should we not have been nodding? should you not have been nodding? should they not have been nodding?