The document provides information about various grammar topics related to discussing past and future events:
1) It discusses adverbs of time that can be used to specify when something occurred in the past, such as yesterday, last week, finally, etc.
2) It then covers the use of comparatives and superlatives when comparing adjectives, following rules like adding -er or using more/most.
3) The document concludes by explaining how to form the future tense using will to make predictions or discuss scheduled/offered events, and going to to refer to intentions or predictions based on present circumstances.