This document discusses verbs that are followed by infinitives with or without "to". It identifies verbs that take the "to" infinitive like "agree" and "attempt". It also lists verbs that do not take "to" like modal verbs and "had better". Exceptions are discussed like how "help" can be used with or without "to". The passive form of "make" always uses the "to" infinitive. Examples are provided to illustrate the different structures.