そんなことはさせない

I won't let that happen

→ そんな

phrase Rare #41,428

I won't let that happen The subject is often omitted, so the person who won't allow it depends on context. It can also mean “I won't let you do that.”

JA: そんなことはさせない。

EN: I won't let that happen.

そして、そんなことはさせない

And I won't let that happen.

— バジュランギおじさんと、小さな迷子 (2015)

そんなことはさせないぞ！

I won't let you do that!

トムにそんなことはさせないよ。

I won't make Tom do that.

そんなことはさせない

I won't let you do that.

— レザボア・ドッグス (1992)