Reported speech is a way of reporting what someone has said by changing some words while retaining the same meaning. When reporting requests, offers, promises or threats, the structure is reporting verb + to-infinitive. Common reporting verbs are offer, promise, agree, refuse. When reporting orders, requests, warnings or advice, the structure is reporting verb + object + to-infinitive. Common reporting verbs are tell, ask, order, warn, advise, invite. For negative reported statements, the structure is not + to-infinitive. Pronouns and possessive adjectives are usually changed from first to third person.