YOU SAID:
the lizard will throw up on his lap in the future
INTO JAPANESE
トカゲは将来膝の上で吐くでしょう
BACK INTO ENGLISH
Lizards will vomit on their laps in the future
INTO JAPANESE
トカゲは将来、膝の上で嘔吐するようになる
BACK INTO ENGLISH
Lizards will vomit on their laps in the future
You should move to Japan!