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