Learn Turkish: Siz yörüngede bekleyeceksiniz.

The verb root is bekle (to wait), which ends in a vowel. The future tense suffix is -ecek, which starts with a vowel. In Turkish, when we attach a suffix starting with a vowel to a word ending in a vowel, we need a buffer letter. For the future tense, that buffer is always y. So we get bekle + y + ecek to make bekleyecek (will wait).

Why do we use -ecek here instead of -acak for the future tense?

It is because of vowel harmony. The last vowel in the root bekle is e. Since e is a front vowel, the suffix must also use front vowels. Therefore, we use -ecek rather than the back-vowel version -acak.

If Siz already means 'You', do we still need the -siniz ending on the verb?

Yes! In Turkish, the verb must always match the subject. The -siniz suffix is the 'you' (plural or formal) person ending. While you can actually drop the pronoun Siz from the sentence because the verb ending makes it clear who is doing the action, you can never drop the -siniz ending.

How does yörüngede translate to 'in orbit'?