Complex Subject

The combination of a noun in the common case (or a pronoun in the nominative case) and an infinitive forms a complex subject (1).
The predicate which is usually expressed by a verb in the passive voice is placed between the noun and the infinitive. The relation between the noun and the infinitive is that of subject and predicate.

Note 1: - According to another interpretation the subject is expressed by a noun or pronoun and the infinitive is regarded as a part of the predicate.

Key examples:

• He is said to be a good teacher.
• The boy is known to have passed his exams well.

The predicate in sentences with a complex subject can be expressed by:

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