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