Question

I am trying to say "When one person has a loss, another could perhaps benefit." This is what I have: Quand une personne a une perte, une autre peut-etre pourrait profiter a la perte. Was I supposed to have used conditional? And do you notice any errors?

Answer 1

If you mean "... could perhaps benefit <i>from the loss</i>.", then you would say "...profiter <i>de</i> la perte", or better still, "...pourrait <i>en</i> profiter." where "en" stands for "<i>de</i> de perte".

You could also say "subir une perte" to mean "suffer a loss". (note: subir is the infinitive form, third person singular is "subit").

Answer 2

You can use the conditional here to express something that could happen
You can use the future as well ( to express something that will happen)
EX… une autre pourra profiter de la perte
peut-être (spelling)