6 Read the examples. How do we form question tags? Find examples in the dialogue in Ex. 3a.

How to form question tags:

1. Generally, if the main clause is positive, the question tag is negative. If the main clause is negative, the question tag is positive.
2. The auxiliary verb (or modal verb) in the main clause is repeated in the question tag.
3. The pronoun referring to the subject is used in the question tag.

Examples from Ex. 3a (dialogue completion):

• 'He works in the camp, doesn't he?' (Main clause is positive, so the tag is negative. 'Works' is present simple, so we use 'does'.)
• 'She can't come, can she?' (Main clause is negative, so the tag is positive. 'Can't' is a modal verb, so we use 'can'.)

Explanation:

We form question tags by using an auxiliary verb (or modal verb) and a pronoun. The verb in the tag is usually the opposite polarity (positive/negative) to the verb in the main clause. The pronoun in the tag refers to the subject of the main clause.