Last night, I was on the phone with a friend who’d been in grad school with me. We were talking about the friendships you form in grad school and decisions some friends of ours have made to go back to school later in life.
When my friend said, “That’s why we keep our friends from grad school”, I completely misheard his intention. I interpreted the sentence to mean:
- That’s why we keep our friends from going to grad school. [Meaning: grad school is tough. Any kind person would try to prevent their friends from suffering like that.]
What he meant was:
- That’s why we keep in touch with the friends we made in grad school. [Meaning: you form close friendships during difficult experiences, and it's important to maintain those friendships past graduation.]
This error is both a lexical ambiguity and a mis-parsing. “Keep” can either mean ‘to maintain’ or ‘to prevent’. If it’s used as ‘to prevent’, then you have to prevent someone from doing something, so ‘from grad school’ is a complement of the verb. If it’s used as ‘to keep’, then ‘from grad school’ is just additional information that tells you what type of friendships you maintain, so ‘from grad school’ is an adjunct.
Both interpretations were facilitated by context. In terms of frequency, I can’t verify which sense of “keep” is more common, but I’m going to assume that the ‘hold onto something’ sense probably occurs more often.