The document provides information on simple present, past, future, and perfect tenses in English. It includes:
- The structure of simple present tense as subject + verb (infinitive without "to").
- Adding "-s" to third person singular verbs.
- The structure of simple past as subject + past verb form ending in "-ed".
- The structure of simple future as subject + will/shall + verb.
- The formation of the past perfect and future perfect tenses by combining an auxiliary verb (had/will have) with the past participle.
- Examples are provided for each tense.