The document describes the formation of sentences in the present simple tense in English. It covers the positive, negative, and question forms. For the positive, the base verb form is used except for the third person singular which adds 's'. The negative uses 'do/does not' except for the verb 'be' and modal verbs. Questions also use 'do/does' except for 'be' and modal verbs, and the verb remains in base form. Exceptions for verbs ending in consonant-y and vowel-y are also outlined.