An "infinitive" in English is a verb preceded by the word to, as in to study. Many English verbs can be followed by a grammatical structure that contains an infinitive and is known as an "infinitive ...

Reader Don in Los Angeles County wrote recently with a question about a well-known grammar issue called a “split infinitive.” “I learned about them 50 years ago and I am somewhat sensitive about them ...

I don't think there was ever anything objectively wrong with splitting infinitives. I think it arose when prescriptive grammarians laid down that as the Latin infinitive, being one word, is ...