I'd be muscling you'd be muscling he'd be muscling we'd be muscling you'd be muscling they'd be muscling
Perfect
I should've muscled you should've muscled he should've muscled we should've muscled you should've muscled they should've muscled
V-ing perfect
I should've been muscling you should've been muscling he should've been muscling we should've been muscling you should've been muscling they should've been muscling
Negation
Simple form
I shouldn't muscle you shouldn't muscle he shouldn't muscle we shouldn't muscle you shouldn't muscle they shouldn't muscle
V-ing form
I shouldn't be muscling you shouldn't be muscling he shouldn't be muscling we shouldn't be muscling you shouldn't be muscling they shouldn't be muscling
Perfect
I shouldn't have muscled you shouldn't have muscled he shouldn't have muscled we shouldn't have muscled you shouldn't have muscled they shouldn't have muscled
V-ing perfect
I shouldn't have been muscling you shouldn't have been muscling he shouldn't have been muscling we shouldn't have been muscling you shouldn't have been muscling they shouldn't have been muscling
Interrogative form
Simple form
should I muscle? should you muscle? should he muscle? should we muscle? should you muscle? should they muscle?
V-ing form
should I be muscling? should you be muscling? should he be muscling? should we be muscling? should you be muscling? should they be muscling?
Perfect
should I have muscled? should you have muscled? should he have muscled? should we have muscled? should you have muscled? should they have muscled?
V-ing perfect
should I have been muscling? should you have been muscling? should he have been muscling? should we have been muscling? should you have been muscling? should they have been muscling?
Interro-negative form
Simple form
shouldn't I muscle? shouldn't you muscle? shouldn't he muscle? shouldn't we muscle? shouldn't you muscle? shouldn't they muscle?
V-ing form
shouldn't I be muscling? shouldn't you be muscling? shouldn't he be muscling? shouldn't we be muscling? shouldn't you be muscling? shouldn't they be muscling?
Perfect
shouldn't I have muscled? shouldn't you have muscled? shouldn't he have muscled? shouldn't we have muscled? shouldn't you have muscled? shouldn't they have muscled?
V-ing perfect
shouldn't I have been muscling? shouldn't you have been muscling? shouldn't he have been muscling? shouldn't we have been muscling? shouldn't you have been muscling? shouldn't they have been muscling?