The document summarizes the differences between using the to-infinitive and gerund forms after verbs and in other contexts. It provides rules for when each is used, such as the to-infinitive expressing purpose or future events and the gerund being used as a subject or after prepositions. Examples are given to illustrate the proper use of the to-infinitive and gerund in sentences. A summary table is also included that outlines the main contexts where a to-infinitive or gerund would be used.