Определите функцию глагола to have, to be.
1. Thousands of workers are injured on the job every year.
2. They don’t have proper training.
3. Safety glasses, goggles and face shields are different types of personal protective equipment.
4. Workers have checked vehicles thoroughly.
5. Employees have to keep their work area clean.

1. Thousands of workers are injured on the job every year. Вспомогательный в страдательном залоге.

2. They don’t have proper training. Смысловой.

3. Safety glasses, goggles and face shields are different types of personal protective equipment. Глагол-связка.

4. Workers have checked vehicles thoroughly. Вспомогательный в Present Perfect.

5. Employees have to keep their work area clean. Эквивалент модального.