私の日本語はいいですか ? (Watashi no nihongo wa īdesu ka?)

If you ask about the meaning of this sentence:

"私の日本語はいいですか?" means "Is my Japanese good?".

Explanation:

1. 私 (watashi) means I

2. の (no) is a preposition to indicate the possession

=> 私の + Noun = my + Noun

3. 日本語 (niihongo) means Japanese

=> The phrase "私の日本語" means "my Japanese"

4. は (wa) in Japanese is used as "be" in English

5. いい (ii) means "good, okay, nice"

6. N + ですか? - a question word used in question.