Learn Turkish: Dün ormanda çok yoruldum. - I got very tired in the forest yesterday.

The verb root is yorul- (to get tired). The past tense suffix here is -du. In the past tense, the personal suffix for "I" is just -m (unlike the present continuous tense where it is -um or -im). So, yorul + du + m makes yoruldum.

Why is there a -da at the end of ormanda?

Orman means forest. The -da is the locative suffix meaning in, on, or at. Because the last vowel in orman is an "a", vowel harmony rules tell us to use -da instead of -de to make ormanda (in the forest).

Does yoruldum literally mean "I got tired" or "I was tired"?

The dictionary verb is yorulmak (to get tired). Putting it in the past tense (yoruldum) literally translates to "I got tired". However, this is exactly how a Turkish speaker naturally expresses the state of "I was tired".

Why does çok come right before the verb?