simple present tense

Simple present tense is used to describe habits, unchanging situations, general truths, and fixed arrangements.

Formula:
Verbal Sentence
(+) Subject + Verb (base form)+ Object/Complement
(-) Subject + do/does + Verb (base form)+ Object/Complement
(?) Do/does+ Subject+ Verb (base form) + Object/Complement

• In the third person singular the verb always ends in -s:
  he wants, she needs, he gives, she thinks.

• Negative and question forms use DOES (= the third person of the auxiliary 'DO') + the infinitive of the verb.
  He wants ice cream. Does he want strawberry? He does not want vanilla.

• Verbs ending in -y : the third person changes the -y to -ies:
  fly --> flies, cry --> cries
  Exception: if there is a vowel before the -y:
  play --> plays, pray --> prays

• Add -es to verbs ending in:-ss, -x, -sh, -ch:
  he passes, she catches, he fixes, it pushes

Formula:
Nominal Sentence
(+) Subject + to be (is/am/are)+ noun/adjective
(-) Subject + to be (is/am/are)+ not + noun/adjective
(?) to be (is/am/are)+ Subject+ noun/adjective