Hello! The Wiki article about "After Many a Summer" by Huxley has the following sentence: "Stoyte hires Dr. Obispo and his assistant Pete to research the secrets to long life in carp, crocodiles, and parrots. "
I have three questions:
1. Is "to long" an infinitive or a part of the prepositional phrase "to long life in..."? I think it's an infinitive, otherwise there would be "a" before "long life".
2. Why is "carp" used in a singular form with no article? Shouldn't it be "in carps"?
3. Can I use "of" in the prepositional phrase "secrets to a long life".