Explanation
Expresses that something has not happened or been done yet (polite form).
Formation
まだ + Verb-ます form (negative)
Detailed explanation
The まだ～ません grammar point is used to express that something has not happened or been done yet in a polite register. It is used with the negative ます-form of a verb (～ません). まだ is placed before the verb phrase.
Examples
昼ご飯をまだ食べていません。
Hirugohan o mada tabete imasen.
I have not eaten lunch yet.
宿題がまだ終わっていません。
Shukudai ga mada owatte imasen.
I have not finished my homework yet.
東京にはまだ行ったことがありません。
Toukyou ni wa mada itta koto ga arimasen.
I have not been to Tokyo yet.
彼はまだ来ていません。
Kare wa mada kite imasen.
He hasn't come yet.
Practice
Grammar content sourced from hanabira.org.