I'm not with you. (Saya tidak mengerti)
I'm not following you. (Saya tidak mengerti)
I'm not sure. (Saya tidak yakin)
I didn't hear what you said. (Saya tidak mendengar apa yang kamu bicarakan)
Pardon me. (Maaf)
Contoh Dialog
Deni: Hey, Ka.
Raka: Hey, Den. You look so confused. What's wrong with you?
Deni: Yeah, I don't understand what the teacher said in English class about simple present tense.
Editor: Ken Supriyono