Question 1

Why does this sentence use the conditional ferait after au cas où? English just uses the present tense.

Accepted Answer

In French, the phrase au cas où (in case) is always followed by the conditional tense. This is because you are talking about an event that is purely hypothetical and might not happen. Even though we say "is" in English, French requires the conditional here, so il ferait acts like "it would be".

Question 2

Can I use the subjunctive after au cas où since it expresses uncertainty?

Accepted Answer

No, and this is a common trap! Unlike some other expressions of doubt or hypothesis that take the subjunctive, au cas où strictly requires the conditional tense. Always pair au cas où with the conditional, like au cas où il ferait froid.

Question 3

Why use emporter instead of apporter for bringing a jacket?

Accepted Answer

Emporter means to take an inanimate object away with you when you leave your current location. You use apporter when you are bringing an object to a specific destination. Since the speaker is taking their jacket away with them as a precaution, emporter is the best choice here.

Question 4

I know ferait is the conditional of faire (to do/make). Why are we using it for the weather instead of être (to be)?

Accepted Answer

As a quick refresher, French uses the verb faire to describe most weather conditions, not être. So while in English we say "it is cold", the French literally say "it makes cold" (il fait froid). In this sentence, it just happens to be in the conditional tense: il ferait froid.

Je vais emporter ma veste au cas où il ferait froid.

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