Function of words in a sentence

In the following construction, how do the words "speak" and "English" function? " Everyday I listen to my father speak English."

Avangi

I'd say "speak" is a "bare infinitive" and "English" is it's direct object.

However, the adjective idea is weird.  

father is the subject of the infinitive.  It's the father who does the speaking of English, after all.

You have interlocking clauses here.  I listen to my father.  My father speaks English.  The second becomes subordinate to the first, and its verb becomes non-finite.

CJ