Identify the italicized word according to its class in structural linguistics. do you think that it will rain? rain is italicized. intensive adjective noun empty word verb

Don't know which word is underlined, so i will just write every part of speech.rain is a noun.began is a linking verb.to is an empty word.fall is a verb.or to fall could be seen as a verb, you don't have to separate them.but again, you didn't underline anything, so i don't know for sure