Is "helped paved" construction correct? (It's very prevalent—perhaps it's dated?)

verbs tenses grammar past-tense

I am proofreading a text with the following sentence: "By the time Henry died, he had helped paved the way for the future of economics."

If "helped paved" is incorrect (and should be "helped pave" instead), why does the internet list so many published instances of it? Please see link:

https://www.google.com/search?q=%22helped+paved%22&source=lnms&tbm=bks&sa=X&ved=0ahUKEwj33fP01P_gAhWl8oMKHelOAAkQ_AUIFCgB&biw=1261&bih=718

Thank you very much!


I suggest that since "helped paved" is probably always followed by "the", then given that the spoken utterance "helped paved the" is almost indistinguishable from from "helped pave the", that the grammatically wrong form has always sounded (more or less) correct.

Isn't it probable that this detestable habit has something to do with the spell-checking apps we all have to use now?

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