menudo vs. a menudo
A menudo digo a mi marido que ... Do you have to use A before mendudo? or can you say:
Menudo digo a mi marido que ...
I don't understand why the word for "often" has to be preceded by A.
3 Answers
It's an adverbial phrase and has to be put together to mean 'often'.
Type in just "menudo" in the blue search box on the toolbar and you will get some interesting answers to why you won't want to use it alone in this context.
And to add to what Katy said, here are two other common sayings using that adverbial phrase:
más a menudo - more often
muy a menudo - very often
Menudo is a soup, that's why.