I should diffuse you should diffuse he should diffuse we should diffuse you should diffuse they should diffuse
V-ing form
I should be diffusing you should be diffusing he should be diffusing we should be diffusing you should be diffusing they should be diffusing
Perfect
I should have diffused you should have diffused he should have diffused we should have diffused you should have diffused they should have diffused
V-ing perfect
I should have been diffusing you should have been diffusing he should have been diffusing we should have been diffusing you should have been diffusing they should have been diffusing
Negation
Simple form
I should not diffuse you should not diffuse he should not diffuse we should not diffuse you should not diffuse they should not diffuse
V-ing form
I should not be diffusing you should not be diffusing he should not be diffusing we should not be diffusing you should not be diffusing they should not be diffusing
Perfect
I should not have diffused you should not have diffused he should not have diffused we should not have diffused you should not have diffused they should not have diffused
V-ing perfect
I should not have been diffusing you should not have been diffusing he should not have been diffusing we should not have been diffusing you should not have been diffusing they should not have been diffusing
Interrogative form
Simple form
should I diffuse? should you diffuse? should he diffuse? should we diffuse? should you diffuse? should they diffuse?
V-ing form
should I be diffusing? should you be diffusing? should he be diffusing? should we be diffusing? should you be diffusing? should they be diffusing?
Perfect
should I have diffused? should you have diffused? should he have diffused? should we have diffused? should you have diffused? should they have diffused?
V-ing perfect
should I have been diffusing? should you have been diffusing? should he have been diffusing? should we have been diffusing? should you have been diffusing? should they have been diffusing?
Interro-negative form
Simple form
should I not diffuse? should you not diffuse? should he not diffuse? should we not diffuse? should you not diffuse? should they not diffuse?
V-ing form
should I not be diffusing? should you not be diffusing? should he not be diffusing? should we not be diffusing? should you not be diffusing? should they not be diffusing?
Perfect
should I not have diffused? should you not have diffused? should he not have diffused? should we not have diffused? should you not have diffused? should they not have diffused?
V-ing perfect
should I not have been diffusing? should you not have been diffusing? should he not have been diffusing? should we not have been diffusing? should you not have been diffusing? should they not have been diffusing?