Tag questions are short phrases or questions placed at the end of a statement to confirm or deny the information. There are basic rules for tag questions: with affirmative sentences, the tag is negative using auxiliary verbs, and with negative sentences the tag is affirmative. Specifically, an affirmative statement tag will use "don't", "doesn't", etc. while a negative statement tag uses "do", "does", etc. Examples are provided for tags following statements using verbs like "to be", and tenses like present, past, perfect present, and future.

1. Tag questions
The tag questionsare shortphrasesorquestions(mini-questions) whichis placed at the end of an
affirmative ornegative sentence and generally aim to confirm or deny the content of the phrase
itself.
Basic rules tag questions:
 The tag questions always use auxiliary verbs.
 With affirmative sentences use a tag question negative.
 With negative sentences use a tag question in the affirmative or positive.
The law of opposites
 Affirmative, the question tag will negatively:
You speak English, don't you? Hablas inglés ¿no?
 in negative sentences, the question tag is in the affirmative:
You haven´t got a pet, have you? No tienes una mascota, ¿verdad?
 Affirmative sentences
(The auxiliary verb in the "tag" is negative).
 Negative sentences
(The auxiliary verb in the "tag" is yes).
 to be
Affirmative: You're a teacher, aren't you?
Negative: You aren't a teacher, are you?
 Present time
Affirmative: You speak English, don't you?
Negative: You don't speak English, do you?
 Past time

2. Affirmative: He went to school, didn't he?
Negative: He didn't go to school, did he?
 Perfect present
Affirmative: You have finished, haven't you?
Negative: You haven't finished, have you?
 Future
Affirmative: She will cook, won't she?
Negative: She won't cook, will she?