Определите функцию глаголов “to be” и “to have”

1. A contract usually contains many clauses about what kinds of goods are to be supplied; who is to pay for transport; what prices are to be paid.

2. His claim for damages will be invalid.

3. The doctrine of precedent is a central feature of modern Common Law systems.

4. The government is considering various proposals, but there are arguments for and against the division.

5. He has to ground his complaint if he wants to have a compensation.

6. In recent times lawyers have made efforts to make their profession less mysterious.

1. is -  обязаны (должны) to be так же имеет функцию модальности. и переводится не "быть, являться, находиться, есть", а как должен (обязан)2. будет 3. является4. вспомогательный глагол для времени present continuous5. должен (обязан)6. вспомогательный глагол для present perfect