Learn Turkish: Köpek bahçeye fırlayıverdi ve gizlendi. - The dog suddenly sprang into the garden and hid.

It is built from the verb root fırla (to spring or dart) plus the suddenness suffix -ıver. Because fırla ends in a vowel, we must use the buffer letter -y- to connect them, resulting in fırla + -y- + -ıver + -di (past tense).

Why is "into the garden" translated as bahçeye instead of bahçede?

Bahçede uses the locative case, which means "in" or "at" the garden. However, because the dog is darting into the garden, we need the dative case to show motion toward a destination. We add the buffer -y- and the dative suffix -e to get bahçeye.

Why does the second verb use gizlendi instead of just gizledi?

The base verb gizlemek means to hide something else. By adding the reflexive suffix -n-, it becomes gizlenmek, which means to hide oneself. Since the dog hid itself, it takes the -n- suffix before the past tense -di.

Does the suddenness of the first verb carry over to gizlendi?