Hi Sinem,
Yes, you can use both, but the second one is preferable. You could also combine them and use "That's the worst thing you can do to anyone". You could also use "could" instead of "can" depending on the context.
I hope it helps :)
Triss
25 Kasım 2017
0
3
Hâlâ cevap bulamadın mı?
Sorularını yaz ve ana dil konuşanlar sana yardım etsin!