what you say
Comprendo lo que usted dice, pero no puedo estar de acuerdo.
I understand what you’re saying, but I can’t agree.
I understand what you are saying.
That's what you say.
No es lo que usted dice, sino todo lo contrario.
It’s not what you say, but quite the opposite.
What you say intrigues me.
No siempre entiendo todo lo que usted dice.
I don't always understand everything you say.
No puedo entender lo que usted dice.
I can't understand what you're saying.