Apunto vs A punto

Question

It was my understanding that the Spanish for "about (to do something)" was "a punto (de + infinitivo)" and that "apunto" was the 1st person singular conjugation of "apuntar".

But I have seen many examples online where the former has been written as "apunto de + infinitivo".

Are both versions correct or is the last just a very common mistake? Or is my first understanding incorrect?

"Haber" and "a ver" is another classic. But who in English has not said their when they meant they're, or picked the wrong to/too (or even two). :) - bosquederoble, Oct 27, 2016

yes. you're right. I just read a post online with "your" when it should have been "you're". Internet makes it hard to know what is correct and what is not. - ErikainAndalusia, Oct 27, 2016

Answer 1

It seems to me that "apunto de + infinitivo" must indeed be a mistake. Estoy apunto de salir means I am I aim to leave (or, generously, I am I am about to leave). Utterly ungrammatical.

Estoy a punto de salir, on the other hand, means I am about to leave.

Thanks. So I'll stick with what I thought it should be. - ErikainAndalusia, Oct 27, 2016

Thanks mate great answer. - ray76, Oct 28, 2016