English verb conjugation
SHOULD SCUFF

Regular verb: scuff - scuffed - scuffed

Affirmation

Simple form	V-ing form
I should scuff you should scuff he should scuff we should scuff you should scuff they should scuff	I should be scuffing you should be scuffing he should be scuffing we should be scuffing you should be scuffing they should be scuffing
Perfect	V-ing perfect
I should have scuffed you should have scuffed he should have scuffed we should have scuffed you should have scuffed they should have scuffed	I should have been scuffing you should have been scuffing he should have been scuffing we should have been scuffing you should have been scuffing they should have been scuffing

Negation

Simple form	V-ing form
I should not scuff you should not scuff he should not scuff we should not scuff you should not scuff they should not scuff	I should not be scuffing you should not be scuffing he should not be scuffing we should not be scuffing you should not be scuffing they should not be scuffing
Perfect	V-ing perfect
I should not have scuffed you should not have scuffed he should not have scuffed we should not have scuffed you should not have scuffed they should not have scuffed	I should not have been scuffing you should not have been scuffing he should not have been scuffing we should not have been scuffing you should not have been scuffing they should not have been scuffing

Interrogative form

Simple form	V-ing form
should I scuff? should you scuff? should he scuff? should we scuff? should you scuff? should they scuff?	should I be scuffing? should you be scuffing? should he be scuffing? should we be scuffing? should you be scuffing? should they be scuffing?
Perfect	V-ing perfect
should I have scuffed? should you have scuffed? should he have scuffed? should we have scuffed? should you have scuffed? should they have scuffed?	should I have been scuffing? should you have been scuffing? should he have been scuffing? should we have been scuffing? should you have been scuffing? should they have been scuffing?

Interro-negative form

Simple form	V-ing form
should I not scuff? should you not scuff? should he not scuff? should we not scuff? should you not scuff? should they not scuff?	should I not be scuffing? should you not be scuffing? should he not be scuffing? should we not be scuffing? should you not be scuffing? should they not be scuffing?
Perfect	V-ing perfect
should I not have scuffed? should you not have scuffed? should he not have scuffed? should we not have scuffed? should you not have scuffed? should they not have scuffed?	should I not have been scuffing? should you not have been scuffing? should he not have been scuffing? should we not have been scuffing? should you not have been scuffing? should they not have been scuffing?