I'll be strengthening you'll be strengthening he'll be strengthening we'll be strengthening you'll be strengthening they'll be strengthening
Perfect
I'll have strengthened you'll have strengthened he'll have strengthened we'll have strengthened you'll have strengthened they'll have strengthened
V-ing perfect
I'll have been strengthening you'll have been strengthening he'll have been strengthening we'll have been strengthening you'll have been strengthening they'll have been strengthening
Negation
Simple form
I won't strengthen you won't strengthen he won't strengthen we won't strengthen you won't strengthen they won't strengthen
V-ing form
I won't be strengthening you won't be strengthening he won't be strengthening we won't be strengthening you won't be strengthening they won't be strengthening
Perfect
I won't have strengthened you won't have strengthened he won't have strengthened we won't have strengthened you won't have strengthened they won't have strengthened
V-ing perfect
I won't have been strengthening you won't have been strengthening he won't have been strengthening we won't have been strengthening you won't have been strengthening they won't have been strengthening
Interrogative form
Simple form
will I strengthen? will you strengthen? will he strengthen? will we strengthen? will you strengthen? will they strengthen?
V-ing form
will I be strengthening? will you be strengthening? will he be strengthening? will we be strengthening? will you be strengthening? will they be strengthening?
Perfect
will I have strengthened? will you have strengthened? will he have strengthened? will we have strengthened? will you have strengthened? will they have strengthened?
V-ing perfect
will I have been strengthening? will you have been strengthening? will he have been strengthening? will we have been strengthening? will you have been strengthening? will they have been strengthening?
Interro-negative form
Simple form
won't I strengthen? won't you strengthen? won't he strengthen? won't we strengthen? won't you strengthen? won't they strengthen?
V-ing form
won't I be strengthening? won't you be strengthening? won't he be strengthening? won't we be strengthening? won't you be strengthening? won't they be strengthening?
Perfect
won't I have strengthened? won't you have strengthened? won't he have strengthened? won't we have strengthened? won't you have strengthened? won't they have strengthened?
V-ing perfect
won't I have been strengthening? won't you have been strengthening? won't he have been strengthening? won't we have been strengthening? won't you have been strengthening? won't they have been strengthening?