I understand it, or That I understand. Depends on the context it is use in
"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)
"I understand, I just can't explain it." --> "Yo comprendo, puedo no explicar."
"Pero yo lo entiendo como lo hable" translates to "But I understand it as I speak it".
No comprendo lo que usted decir No entiendo lo que dices
entiendo lo que dices
Look! What I...
Literally it means: "What I don't understand every time is what the h... you are talking about/saying"
Spanish sea lo que sea means "come what may".
This is what I do.
No entiendo lo que dices. Estoy confundida.
No creo que entiendo lo que Ud. quiere decir.
"To do lo que tengo es Dios" translates to "All that I have is God" in English.