I should lug you should lug she should lug we should lug you should lug they should lug
V-ing form
I should be lugging you should be lugging she should be lugging we should be lugging you should be lugging they should be lugging
Perfect
I should have lugged you should have lugged she should have lugged we should have lugged you should have lugged they should have lugged
V-ing perfect
I should have been lugging you should have been lugging she should have been lugging we should have been lugging you should have been lugging they should have been lugging
Negation
Simple form
I should not lug you should not lug she should not lug we should not lug you should not lug they should not lug
V-ing form
I should not be lugging you should not be lugging she should not be lugging we should not be lugging you should not be lugging they should not be lugging
Perfect
I should not have lugged you should not have lugged she should not have lugged we should not have lugged you should not have lugged they should not have lugged
V-ing perfect
I should not have been lugging you should not have been lugging she should not have been lugging we should not have been lugging you should not have been lugging they should not have been lugging
Interrogative form
Simple form
should I lug? should you lug? should she lug? should we lug? should you lug? should they lug?
V-ing form
should I be lugging? should you be lugging? should she be lugging? should we be lugging? should you be lugging? should they be lugging?
Perfect
should I have lugged? should you have lugged? should she have lugged? should we have lugged? should you have lugged? should they have lugged?
V-ing perfect
should I have been lugging? should you have been lugging? should she have been lugging? should we have been lugging? should you have been lugging? should they have been lugging?
Interro-negative form
Simple form
should I not lug? should you not lug? should she not lug? should we not lug? should you not lug? should they not lug?
V-ing form
should I not be lugging? should you not be lugging? should she not be lugging? should we not be lugging? should you not be lugging? should they not be lugging?
Perfect
should I not have lugged? should you not have lugged? should she not have lugged? should we not have lugged? should you not have lugged? should they not have lugged?
V-ing perfect
should I not have been lugging? should you not have been lugging? should she not have been lugging? should we not have been lugging? should you not have been lugging? should they not have been lugging?