Learn Turkish: Saçını boyatıp yeni bir şampuan ve krem deniyor. - She is having her hair dyed and trying a new shampoo and conditioner.

The suffix -(y)ıp connects two actions done by the same subject, acting like the word "and". Here, it connects the verbs boyat- (have dyed) and dene- (try). The first verb gets -(y)ıp and drops its tense and person endings because it "borrows" them from the final verb in the sentence (deniyor). So boyatıp... deniyor means "she is having (it) dyed and trying...".

Why is the verb boyatıp instead of boyayıp?

The base verb is boyamak (to dye). Adding the -t suffix makes it "causative", meaning you are having someone else do the action. Boyatmak means "to have [something] dyed". Since she is likely at a salon getting her hair dyed rather than doing it herself, we use boyat-.

Let's break down saçını. What do the suffixes mean here?

The root is saç (hair). The first -ı is the possessive suffix for "her" (saçı = her hair). The -n- is a buffer letter that is always used when adding a case ending to a third-person possessive. The final -ı is the accusative case, marking "her hair" as the direct object being dyed.

The dictionary form of "to try" is denemek. Why is it spelled deniyor here instead of deneyiyor?