Learn Turkish: Tehlikeden kaçınmak için emniyet kemeri takmak lazım. - It is necessary to wear a seatbelt to avoid danger.

The lesson focuses on general necessity using an infinitive verb plus lazım. Here, takmak lazım means "it is necessary to wear". Because it uses the basic dictionary form (takmak) without any personal endings, it states a general rule for everyone, rather than saying a specific person must do it.

Why does tehlike (danger) have the -den ending?

In Turkish, the verb kaçınmak (to avoid or shy away from) requires the ablative case, which is the "from" ending (-den or -dan). So, you literally say you are avoiding "from" danger: tehlikeden kaçınmak.

How does için work with a verb in this sentence?

When you put için (for) directly after an infinitive verb like kaçınmak, it creates a phrase meaning "in order to". So, kaçınmak için translates perfectly to "in order to avoid".

Why is there an -i at the end of emniyet kemeri (seatbelt)?

Emniyet kemeri is a noun compound made of two nouns: emniyet (safety) and kemer (belt). In Turkish, when linking two nouns to make a single concept, the second word must take a possessive ending, which is the -i we see here.