It means, "Yes, I understand you, but I don't know it to write [how to write it]." In Spanish it's written, - Sí, te entiendo, pero no lo sé escribir.
Spanish: que no entiendo English: I do not understand
"Pero yo lo entiendo como lo hable" translates to "But I understand it as I speak it".
"Si yo entiendo" means "if I understand" in Spanish.
It means: "Finally I understand you cousin"
Translation: I do not understand. I only speak Spanish.
What I can't understand you
Spanish. 'no intiendo' means 'I do not understand', as in: "No entiendo bien el español.", which means 'I do not understand Spanish well."
Spanish: que no entiendo English: I do not understand
I understand it, or That I understand. Depends on the context it is use in
Depends on punctuation: ¿Qué? No entiendo. = What? I don't understand. ...que no entiendo = ...that/because I don't understand. (Dinmelo denuevo que no entiendo = Tell me again because I don't understand) (Dije que no entiendo este libro = I said that I don't understand this book)
No te entiendo = I don't understand you.
"Pero yo lo entiendo como lo hable" translates to "But I understand it as I speak it".
"No entiendo, porque..." means: I don't understand because "No entiendo, ¿por que?" means: I don't understand, why? (the meaning depending on if por que was one or two words) (to add one more meaning To Laila's answer) "No entiendo por que!" made as a statement can mean " I do not understand why! " (disbelief)
"Si yo entiendo" means "if I understand" in Spanish.
It means: "Finally I understand you cousin"
This means 'I do not understand you,speak Spanish to me!' or it also means 'I don't understand ,I only speak Spanish.'
Translation: I do not understand. I only speak Spanish.