Ben notu öğretmene ilettim.

I

Breakdown of Ben notu öğretmene ilettim.

• öğretmen: the teacher
• not: the note
• -e: to

Questions & Answers about Ben notu öğretmene ilettim.

Is the subject pronoun Ben required?

No. The verb ending already shows the subject. İlettim ends with -m, which marks 1st person singular, so the natural everyday version is simply: Notu öğretmene ilettim. Use Ben only for emphasis or contrast, as in “I (not someone else) delivered it.”

Why does notu end with -u?

Because it’s the definite direct object. Turkish marks specific/definite direct objects with the 4‑way accusative suffix -(y)ı / -(y)i / -(y)u / -(y)ü.

• Last vowel of not is o (back, rounded), so it takes -u: notu = “the note/grade.”
• If it were indefinite (“a note”), you would not add the accusative: bir not ilettim (“I delivered a note”).
  Saying just not ilettim is also grammatical and means “(I) delivered note(s),” but bir not is the usual way to make it clearly singular and indefinite.

Could notu mean “his/her note/grade” instead of “the note/grade”?

On its own, notu can be ambiguous in isolation:

• notu (accusative of “note/grade”) = “the note/grade”
• notu (3rd person possessive) = “his/her note/grade” (in nominative or as an object if indefinite)

But in your sentence, if you meant “his/her note/grade” as a definite object, Turkish normally shows both possession and accusative: notunu = “his/her note/grade” (as a definite object).

• “I delivered his grade to the teacher” → Notunu öğretmene ilettim.
• “I delivered the grade (the specific one we both know)” → Notu öğretmene ilettim.
  Context usually makes it clear.