Learn Turkish: Çok yorgunum, mutfağı yarın sabah toplayayım. - I am very tired, let me tidy up the kitchen tomorrow morning.

The verb root is topla (to tidy/collect). To say "let me", we need the optative suffix -a and the personal ending -ım. Because topla ends in a vowel, we add the buffer letter y before the -a. Then we add another buffer y before the personal ending. So it becomes topla + y + a + y + ım = toplayayım.

I learned that toplamak means "to gather" or "to collect". Can it mean "to tidy"?

Exactly! While the literal meaning is "to gather", native speakers use toplamak all the time to mean "to tidy up" a room, a bed, or a kitchen (mutfak). You can think of it as "gathering" the mess to put it away.

Why does the word for kitchen (mutfak) have a ğ here?

We are tidying a specific kitchen, so mutfak needs the accusative case ending -ı. In Turkish, when you add a suffix starting with a vowel to a word ending in k, the k usually softens into a ğ (soft g) to make it easier to pronounce. So, mutfak + ı becomes mutfağı.

Why isn't there an "in" or "at" ending on yarın sabah (tomorrow morning)?