This document provides instruction on using the present simple tense in English. It discusses:
1) The basic forms of the present simple for I/you and affirmative, negative and interrogative sentences.
2) The forms for we/you/they including examples of affirmative, negative and interrogative sentences.
3) The forms for he/she/it including adding 's' for third person singular in affirmative sentences and 'does not' for negative sentences. Questions use 'does'.
4) Spelling rules for adding 's' or 'es' for third person singular verbs and irregular verbs.