Learn Farsi: تو نباید در گرداب دروغ گیر کنی. - You must not get stuck in the whirlpool of lies.

In gerdâb-e dorugh (the whirlpool of lies), the Ezafe directly links the metaphorical image (gerdâb, whirlpool) to the actual concept being described (dorugh, lies or falsehood). This structure creates a strong equation where the lies metaphorically act as a whirlpool, without needing comparative words like 'like' or 'as'.

Why does the sentence use the verb form gir koni instead of an indicative form?

This is a great refresher on modal verbs: it is because of the verb nabâyad (must not / should not). In Farsi, any verb following bâyad or nabâyad must take the present subjunctive form. Since the subject is to (you), the compound verb gir kardan (to get stuck) takes the subjunctive ending for the second person singular, becoming gir koni.

The English translation says 'lies' in the plural. Why is dorugh singular here?

Grammatically, dorugh is singular. In Farsi, when referring to an abstract concept, category, or general substance, the singular form is often preferred. While you could technically say gerdâb-e dorugh-hâ using the plural marker, using the singular dorugh sounds much more natural and poetic for a Metaphorical Ezafe.

What is the literal meaning of the compound verb gir kardan?

The noun gir means a catch, snag, or grip. When combined with kardan (to do or make), means to get snagged, trapped, or stuck. It is a highly versatile verb used for physical situations (like a key getting stuck in a lock) as well as metaphorical ones, like being trapped in a bad situation.