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