I should muscle you should muscle he should muscle we should muscle you should muscle they should muscle
V-ing form
I should be muscling you should be muscling he should be muscling we should be muscling you should be muscling they should be muscling
Perfect
I should have muscled you should have muscled he should have muscled we should have muscled you should have muscled they should have muscled
V-ing perfect
I should have been muscling you should have been muscling he should have been muscling we should have been muscling you should have been muscling they should have been muscling
Negation
Simple form
I should not muscle you should not muscle he should not muscle we should not muscle you should not muscle they should not muscle
V-ing form
I should not be muscling you should not be muscling he should not be muscling we should not be muscling you should not be muscling they should not be muscling
Perfect
I should not have muscled you should not have muscled he should not have muscled we should not have muscled you should not have muscled they should not have muscled
V-ing perfect
I should not have been muscling you should not have been muscling he should not have been muscling we should not have been muscling you should not have been muscling they should not 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
should I not muscle? should you not muscle? should he not muscle? should we not muscle? should you not muscle? should they not muscle?
V-ing form
should I not be muscling? should you not be muscling? should he not be muscling? should we not be muscling? should you not be muscling? should they not be muscling?
Perfect
should I not have muscled? should you not have muscled? should he not have muscled? should we not have muscled? should you not have muscled? should they not have muscled?
V-ing perfect
should I not have been muscling? should you not have been muscling? should he not have been muscling? should we not have been muscling? should you not have been muscling? should they not have been muscling?