מַ֭דּוּעַ קִדְּמ֣וּנִי בִרְכָּ֑יִם וּמַה־שָּׁ֝דַ֗יִם כִּ֣י אִינָֽק׃
어찌하여 무릎이 나를 받았던가 어찌하여 유방이 나로 빨게 하였던가
Rashi
Why did knees receive me Why did the knees of my mother receive me before my death?
Rashi
that I should suck [Why] was it decreed upon me to suck them? As he is speaking on the day of his birth, he mentions those subsequent events in the future tense.