I'd be retrofiting you'd be retrofiting he'd be retrofiting we'd be retrofiting you'd be retrofiting they'd be retrofiting
Perfect
I should've retrofit you should've retrofit he should've retrofit we should've retrofit you should've retrofit they should've retrofit
Perfect en V-ing
I should've been retrofiting you should've been retrofiting he should've been retrofiting we should've been retrofiting you should've been retrofiting they should've been retrofiting
Négation
Forme simple
I shouldn't retrofit you shouldn't retrofit he shouldn't retrofit we shouldn't retrofit you shouldn't retrofit they shouldn't retrofit
Forme en V-ing
I shouldn't be retrofiting you shouldn't be retrofiting he shouldn't be retrofiting we shouldn't be retrofiting you shouldn't be retrofiting they shouldn't be retrofiting
Perfect
I shouldn't have retrofit you shouldn't have retrofit he shouldn't have retrofit we shouldn't have retrofit you shouldn't have retrofit they shouldn't have retrofit
Perfect en V-ing
I shouldn't have been retrofiting you shouldn't have been retrofiting he shouldn't have been retrofiting we shouldn't have been retrofiting you shouldn't have been retrofiting they shouldn't have been retrofiting
Forme interrogative
Forme simple
should I retrofit? should you retrofit? should he retrofit? should we retrofit? should you retrofit? should they retrofit?
Forme en V-ing
should I be retrofiting? should you be retrofiting? should he be retrofiting? should we be retrofiting? should you be retrofiting? should they be retrofiting?
Perfect
should I have retrofit? should you have retrofit? should he have retrofit? should we have retrofit? should you have retrofit? should they have retrofit?
Perfect en V-ing
should I have been retrofiting? should you have been retrofiting? should he have been retrofiting? should we have been retrofiting? should you have been retrofiting? should they have been retrofiting?
Forme interro-négative
Forme simple
shouldn't I retrofit? shouldn't you retrofit? shouldn't he retrofit? shouldn't we retrofit? shouldn't you retrofit? shouldn't they retrofit?
Forme en V-ing
shouldn't I be retrofiting? shouldn't you be retrofiting? shouldn't he be retrofiting? shouldn't we be retrofiting? shouldn't you be retrofiting? shouldn't they be retrofiting?
Perfect
shouldn't I have retrofit? shouldn't you have retrofit? shouldn't he have retrofit? shouldn't we have retrofit? shouldn't you have retrofit? shouldn't they have retrofit?
Perfect en V-ing
shouldn't I have been retrofiting? shouldn't you have been retrofiting? shouldn't he have been retrofiting? shouldn't we have been retrofiting? shouldn't you have been retrofiting? shouldn't they have been retrofiting?