YOU SAID:

for labs went to a blab and sat on my lap

INTO JAPANESE

ラボはブラブに行って膝の上に座っていた

BACK INTO ENGLISH

Lab went to blab and sat on lap

INTO JAPANESE

ラボはblabに行き、膝の上に座った

BACK INTO ENGLISH

Lab went to blab and sat on knee

INTO JAPANESE

ラボはblabに行き、膝の上に座りました

BACK INTO ENGLISH

Lab went to blab and sat on knee