I'd be masting you'd be masting she'd be masting we'd be masting you'd be masting they'd be masting
Perfect
I should've masted you should've masted she should've masted we should've masted you should've masted they should've masted
V-ing perfect
I should've been masting you should've been masting she should've been masting we should've been masting you should've been masting they should've been masting
Negation
Simple form
I shouldn't mast you shouldn't mast she shouldn't mast we shouldn't mast you shouldn't mast they shouldn't mast
V-ing form
I shouldn't be masting you shouldn't be masting she shouldn't be masting we shouldn't be masting you shouldn't be masting they shouldn't be masting
Perfect
I shouldn't have masted you shouldn't have masted she shouldn't have masted we shouldn't have masted you shouldn't have masted they shouldn't have masted
V-ing perfect
I shouldn't have been masting you shouldn't have been masting she shouldn't have been masting we shouldn't have been masting you shouldn't have been masting they shouldn't have been masting
Interrogative form
Simple form
should I mast? should you mast? should she mast? should we mast? should you mast? should they mast?
V-ing form
should I be masting? should you be masting? should she be masting? should we be masting? should you be masting? should they be masting?
Perfect
should I have masted? should you have masted? should she have masted? should we have masted? should you have masted? should they have masted?
V-ing perfect
should I have been masting? should you have been masting? should she have been masting? should we have been masting? should you have been masting? should they have been masting?
Interro-negative form
Simple form
shouldn't I mast? shouldn't you mast? shouldn't she mast? shouldn't we mast? shouldn't you mast? shouldn't they mast?
V-ing form
shouldn't I be masting? shouldn't you be masting? shouldn't she be masting? shouldn't we be masting? shouldn't you be masting? shouldn't they be masting?
Perfect
shouldn't I have masted? shouldn't you have masted? shouldn't she have masted? shouldn't we have masted? shouldn't you have masted? shouldn't they have masted?
V-ing perfect
shouldn't I have been masting? shouldn't you have been masting? shouldn't she have been masting? shouldn't we have been masting? shouldn't you have been masting? shouldn't they have been masting?