Conjugación del verbo inglés
SHOULD STRENGTHEN

Verbo regular: strengthen - strengthened - strengthened

Afirmación

Forma simple	Forma con V-ing
I should strengthen you should strengthen he should strengthen we should strengthen you should strengthen they should strengthen	I should be strengthening you should be strengthening he should be strengthening we should be strengthening you should be strengthening they should be strengthening
Perfecto	Perfecto con V-ing
I should have strengthened you should have strengthened he should have strengthened we should have strengthened you should have strengthened they should have strengthened	I should have been strengthening you should have been strengthening he should have been strengthening we should have been strengthening you should have been strengthening they should have been strengthening

Negación

Forma simple	Forma con V-ing
I should not strengthen you should not strengthen he should not strengthen we should not strengthen you should not strengthen they should not strengthen	I should not be strengthening you should not be strengthening he should not be strengthening we should not be strengthening you should not be strengthening they should not be strengthening
Perfecto	Perfecto con V-ing
I should not have strengthened you should not have strengthened he should not have strengthened we should not have strengthened you should not have strengthened they should not have strengthened	I should not have been strengthening you should not have been strengthening he should not have been strengthening we should not have been strengthening you should not have been strengthening they should not have been strengthening

Forma interrogativa

Forma simple	Forma con V-ing
should I strengthen? should you strengthen? should he strengthen? should we strengthen? should you strengthen? should they strengthen?	should I be strengthening? should you be strengthening? should he be strengthening? should we be strengthening? should you be strengthening? should they be strengthening?
Perfecto	Perfecto con V-ing
should I have strengthened? should you have strengthened? should he have strengthened? should we have strengthened? should you have strengthened? should they have strengthened?	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?

Forma interro-negativa

Forma simple	Forma con V-ing
should I not strengthen? should you not strengthen? should he not strengthen? should we not strengthen? should you not strengthen? should they not strengthen?	should I not be strengthening? should you not be strengthening? should he not be strengthening? should we not be strengthening? should you not be strengthening? should they not be strengthening?
Perfecto	Perfecto con V-ing
should I not have strengthened? should you not have strengthened? should he not have strengthened? should we not have strengthened? should you not have strengthened? should they not have strengthened?	should I not have been strengthening? should you not have been strengthening? should he not have been strengthening? should we not have been strengthening? should you not have been strengthening? should they not have been strengthening?