Learn Turkish: Tut ki dün gelmedi, sen de kahrolacak mısın? - Assume he didn't come yesterday; will you be devastated too?

It is a compound verb made from the noun kahır (sorrow, distress) and the auxiliary verb olmak (to be/become). When they combine, the vowel ı in the second syllable of kahır drops out. According to Turkish spelling rules, if a vowel is dropped or a consonant is doubled when forming a compound with an auxiliary verb, the words must be written together without a space as kahrolmak.

What does the phrase tut ki literally mean here?

Tutmak generally means to hold, keep, or catch. When combined with the conjunction ki (that), tut ki becomes a fixed phrase meaning suppose that, assume that, or let's say. You are essentially saying hold it as a fact that...

Why do we use the past tense in gelmedi but the future tense in kahrolacak mısın?

The first clause sets up a hypothetical scenario about a past event (Suppose he didn't come yesterday). The second clause asks about the ongoing or future consequence of that past scenario (are you going to be devastated?). Turkish comfortably mixes tenses across clauses when setting up conditions and their logical results.

Why is sen de written as two separate words?

In this sentence, de is the conjunction meaning too or also (will you too be devastated?). As a B2 reminder, the conjunction da/de is always written as a separate word, which distinguishes it from the locative case suffix -da/-de (meaning in/on/at) that attaches directly to the preceding word.