The answer is no and here is why; --->pekidi is grammatically wrong if we really had to say something was okay/alright then we had to add "y" as connection letter pekiYdi --->When can we say this word? example: -What was his answer to that question? -It (his answer) was okay - Pekiydi Only in such a conversation this word would make some sense. ---So we need to use the word "iyi" I am OK - İyiyim The film was OK - Film güzeldi Let's learn some more; if it is just so-so movie then Film fena değildi or İdare eder --yes it is present even though the question is past tense and for a person; I am so-so Fena değilim / Fena değil / İdare eder When it is an answer for a person, I would say it is a bit informal to say "İdare eder" Hope this helps!

can be I am OK İyiyim the film was ok Film iyiydi