The document discusses the differences between time and tense. It notes that there are only two forms - present and past. It then provides examples of how verbs are conjugated in different tenses, such as present simple, past simple, future simple, etc. for the verbs "to eat" and "to be eaten". It also gives examples of how tense indicates time, such as using present tense to refer to present or future time and past tense to refer to past time.