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