Learn Turkish: Şu tezgahtaki tabloyu alalım. - Let's buy the painting on that stall.

This word is built from tezgah (stall) + -ta (on/at) + -ki (the one that is). The location suffix -da changes to -ta here because tezgah ends in a voiceless consonant (h). Then, the -ki suffix attaches to make the whole thing an adjective describing the painting: "the on-the-stall painting".

Does Şu (that) describe the stall or the painting?

It describes the stall. In Turkish, words like bu, şu, and o come right before the noun they describe. So Şu tezgah means "that stall". The entire phrase Şu tezgahtaki then acts like one big adjective meaning "which is on that stall", placed right before the main noun (tabloyu).

Why is there a -yu at the end of tabloyu?

tablo means "painting". Because we want to buy a specific painting (the one on that stall), it must take the specific direct object ending (the accusative case). We add the buffer letter -y- to separate the two vowels, followed by the suffix -u (chosen because of vowel harmony with the o in tablo).

I learned that almak means "to take". Why is it translated as "let's buy" here?