Conjugaison du verbe anglais SHOULD RETARD

I'd retard
you'd retard
he'd retard
we'd retard
you'd retard
they'd retard

I'd be retarding
you'd be retarding
he'd be retarding
we'd be retarding
you'd be retarding
they'd be retarding

I should've retarded
you should've retarded
he should've retarded
we should've retarded
you should've retarded
they should've retarded

I should've been retarding
you should've been retarding
he should've been retarding
we should've been retarding
you should've been retarding
they should've been retarding

I shouldn't retard
you shouldn't retard
he shouldn't retard
we shouldn't retard
you shouldn't retard
they shouldn't retard

I shouldn't be retarding
you shouldn't be retarding
he shouldn't be retarding
we shouldn't be retarding
you shouldn't be retarding
they shouldn't be retarding

I shouldn't have retarded
you shouldn't have retarded
he shouldn't have retarded
we shouldn't have retarded
you shouldn't have retarded
they shouldn't have retarded

I shouldn't have been retarding
you shouldn't have been retarding
he shouldn't have been retarding
we shouldn't have been retarding
you shouldn't have been retarding
they shouldn't have been retarding

should I retard?
should you retard?
should he retard?
should we retard?
should you retard?
should they retard?

should I be retarding?
should you be retarding?
should he be retarding?
should we be retarding?
should you be retarding?
should they be retarding?

should I have retarded?
should you have retarded?
should he have retarded?
should we have retarded?
should you have retarded?
should they have retarded?

should I have been retarding?
should you have been retarding?
should he have been retarding?
should we have been retarding?
should you have been retarding?
should they have been retarding?

shouldn't I retard?
shouldn't you retard?
shouldn't he retard?
shouldn't we retard?
shouldn't you retard?
shouldn't they retard?

shouldn't I be retarding?
shouldn't you be retarding?
shouldn't he be retarding?
shouldn't we be retarding?
shouldn't you be retarding?
shouldn't they be retarding?

shouldn't I have retarded?
shouldn't you have retarded?
shouldn't he have retarded?
shouldn't we have retarded?
shouldn't you have retarded?
shouldn't they have retarded?

shouldn't I have been retarding?
shouldn't you have been retarding?
shouldn't he have been retarding?
shouldn't we have been retarding?
shouldn't you have been retarding?
shouldn't they have been retarding?