- yo, de álgebra, estoy en la inopia
- I don't know a thing o the first thing about algebra
- mi madre está en la inopia, no se acuerda nunca de mi cumpleaños
- my mother's hopeless, she never remembers my birthday
- a pesar de su explicación, me quedé en la inopia
- despite his explanation, I was none the wiser o I still didn't understand
- siempre está en la inopia
- he's always daydreaming