One of our grammar professors said this categorization to us. As I am out of reference access now I couldn't refer to the reference exactly but I remember his favorite was 'Modern English' (pardon me because of the inaccuracy) and the rules are as follows:
Based on the main verb used in the sentence we have four different types:
- Intransitive: Mary left. (noun phrase + verb phrase)
- Transitive: The cat ate the rat. (noun phrase + verb phrase + noun phrase)
- Double transitive: Mary sent a letter to John (noun phrase + verb phrase + noun phrase + preposition>>noun phrase)
In this structure if you change the places of the direct and indirect objects the preposition ‘to’ is omitted.
- 4. Linking verbs: John is tall. John resembles his father. (noun phrase + linking verb + complement (adjective or noun phrase))