Learn French: C'est calme dehors, l'ennemi sera fatigué. - It's quiet outside, the enemy must be tired.

C'est calme dehors, l'ennemi sera fatigué.

It's quiet outside, the enemy must be tired.

Breakdown of C'est calme dehors, l'ennemi sera fatigué.

être

to be

it / this (with être)

Questions & Answers about C'est calme dehors, l'ennemi sera fatigué.

Why is the future tense sera translated as "must be" instead of "will be"?

This is the futur de probabilité (future of probability). In French, you can use the future tense to express a strong assumption, deduction, or probability about a present situation. While "the enemy will be tired" is a literal translation, in this context (deducing why it is quiet right now), it translates better to "the enemy must be tired" or "the enemy is probably tired".

Could I just say l'ennemi doit être fatigué to mean "the enemy must be tired"?

Yes, absolutely! L'ennemi doit être fatigué uses the verb devoir to express probability and is very common. Using the future tense (sera) is just another, slightly more elegant way to express the exact same kind of present-tense deduction.

We usually use il fait to describe the conditions outside (like il fait beau). Why is it c'est calme here instead of il fait calme?

Il fait is specifically used for literal weather conditions and temperatures (il fait froid, il fait du vent). For the general atmosphere, noise level, or mood of a place, you use c'est. So, to say "it is quiet", you use c'est calme or c'est tranquille.

There is just a comma connecting the two clauses. Shouldn't we use a conjunction like donc (so/therefore)?