I should dampen you should dampen he should dampen we should dampen you should dampen they should dampen
V-ing form
I should be dampening you should be dampening he should be dampening we should be dampening you should be dampening they should be dampening
Perfect
I should have dampened you should have dampened he should have dampened we should have dampened you should have dampened they should have dampened
V-ing perfect
I should have been dampening you should have been dampening he should have been dampening we should have been dampening you should have been dampening they should have been dampening
Negation
Simple form
I should not dampen you should not dampen he should not dampen we should not dampen you should not dampen they should not dampen
V-ing form
I should not be dampening you should not be dampening he should not be dampening we should not be dampening you should not be dampening they should not be dampening
Perfect
I should not have dampened you should not have dampened he should not have dampened we should not have dampened you should not have dampened they should not have dampened
V-ing perfect
I should not have been dampening you should not have been dampening he should not have been dampening we should not have been dampening you should not have been dampening they should not have been dampening
Interrogative form
Simple form
should I dampen? should you dampen? should he dampen? should we dampen? should you dampen? should they dampen?
V-ing form
should I be dampening? should you be dampening? should he be dampening? should we be dampening? should you be dampening? should they be dampening?
Perfect
should I have dampened? should you have dampened? should he have dampened? should we have dampened? should you have dampened? should they have dampened?
V-ing perfect
should I have been dampening? should you have been dampening? should he have been dampening? should we have been dampening? should you have been dampening? should they have been dampening?
Interro-negative form
Simple form
should I not dampen? should you not dampen? should he not dampen? should we not dampen? should you not dampen? should they not dampen?
V-ing form
should I not be dampening? should you not be dampening? should he not be dampening? should we not be dampening? should you not be dampening? should they not be dampening?
Perfect
should I not have dampened? should you not have dampened? should he not have dampened? should we not have dampened? should you not have dampened? should they not have dampened?
V-ing perfect
should I not have been dampening? should you not have been dampening? should he not have been dampening? should we not have been dampening? should you not have been dampening? should they not have been dampening?