Learn Turkish: Çocuk için bir hediye alıyorum. - I am buying a gift for the child.

için means 'for' and it acts as a postposition, meaning it comes after the word it relates to. So, çocuk için literally translates to 'child for'. When used with regular nouns like çocuk, it doesn't require any special case endings on the noun itself.

Doesn't the verb almak mean 'to take'? Why is it translated as 'buying'?

The verb root al- literally means 'to take' or 'to get'. However, in Turkish, it is also the standard word used for 'to buy'. Context tells us which one it is: since you are getting a gift (hediye), it naturally means 'buying'.

How do the endings on alıyorum build the meaning 'I am buying'?

It starts with the verb root al- (buy/take). We add the present continuous suffix -ıyor to show an ongoing action (am buying). Finally, the personal ending -um tells us that 'I' am the one doing the action.

Why do we use bir before hediye?

Using bir (a/an) shows that you are buying one specific gift. If you remove it and just say hediye alıyorum, you are talking about the general activity of gift-buying rather than focusing on a single item.