Hi everyone. I'm afraid what I wrote is obscure. Just a few more words.
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I think this kind of verb phrases, [spray the wall with paint], is a little bit specific.
(1) We can spray the wall with paint, endlessly.
(2) We can spray the wall with paint, in some temporal interval.
..... We should give different interpretations to them.
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By this I meant roughly the following:
[1] We can [walk] endlessly, but we cannot [walk a mile] endlessly.
[2] We can [eat apples] endlessly, but we cannot [eat an apple] endlessly.
[3]
We can [spray the wall with paint] endlessly, but we cannot [paint some definite pictute] endlessly.
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On the other hand:
[4] We [walked a mile] in an hour.
[5] (?) We [walked] in an hour. (One possible interpretation is: it took us an hour before we began to walk.)
![Devil [6]](/emoticons/emotion-14.gif)
We [ate an apple] in a minute.
[7] (?) We [ate apples] in a minute.
We [sprayed the wall with paint] in an hour.
As to the verb phrase [spray the wall with paint], there're easily available two reading: activity one and accomplishment one. (When I made a previous post I had in mind roughly such a thing.)
As an afterthought.