I should tinker you should tinker he should tinker we should tinker you should tinker they should tinker
V-ing form
I should be tinkering you should be tinkering he should be tinkering we should be tinkering you should be tinkering they should be tinkering
Perfect
I should have tinkered you should have tinkered he should have tinkered we should have tinkered you should have tinkered they should have tinkered
V-ing perfect
I should have been tinkering you should have been tinkering he should have been tinkering we should have been tinkering you should have been tinkering they should have been tinkering
Negation
Simple form
I should not tinker you should not tinker he should not tinker we should not tinker you should not tinker they should not tinker
V-ing form
I should not be tinkering you should not be tinkering he should not be tinkering we should not be tinkering you should not be tinkering they should not be tinkering
Perfect
I should not have tinkered you should not have tinkered he should not have tinkered we should not have tinkered you should not have tinkered they should not have tinkered
V-ing perfect
I should not have been tinkering you should not have been tinkering he should not have been tinkering we should not have been tinkering you should not have been tinkering they should not have been tinkering
Interrogative form
Simple form
should I tinker? should you tinker? should he tinker? should we tinker? should you tinker? should they tinker?
V-ing form
should I be tinkering? should you be tinkering? should he be tinkering? should we be tinkering? should you be tinkering? should they be tinkering?
Perfect
should I have tinkered? should you have tinkered? should he have tinkered? should we have tinkered? should you have tinkered? should they have tinkered?
V-ing perfect
should I have been tinkering? should you have been tinkering? should he have been tinkering? should we have been tinkering? should you have been tinkering? should they have been tinkering?
Interro-negative form
Simple form
should I not tinker? should you not tinker? should he not tinker? should we not tinker? should you not tinker? should they not tinker?
V-ing form
should I not be tinkering? should you not be tinkering? should he not be tinkering? should we not be tinkering? should you not be tinkering? should they not be tinkering?
Perfect
should I not have tinkered? should you not have tinkered? should he not have tinkered? should we not have tinkered? should you not have tinkered? should they not have tinkered?
V-ing perfect
should I not have been tinkering? should you not have been tinkering? should he not have been tinkering? should we not have been tinkering? should you not have been tinkering? should they not have been tinkering?