Spanish phrase
No sé cómo hacerlo.
Meaning
I don't know how to do it.
When to use it
It means the speaker does not know how to do something. It is a simple way to explain that the method is unclear.
Example dialogue
¿Sabes atarte los cordones?
Do you know how to tie your shoelaces?
No sé cómo hacerlo.
I don't know how to do it.