Exercise 5. Learn to distinguish between Indefinite and Perfect Infinitive in the Complex Object Infinitive Construction and give their proper translation. 1. The history o f the last 10 years shows them to have succeeded much in this field. 2. We
know him to have established a research institute. 3. We didn’t expect him to throw away an
opportunity like this. 4. We know him to have objected to this style o f research on previous
occasions. 5. They considered all water on the surface o f this planet to have been liberated by
volcanic action. 6. What enabled the scientist to do so well with this disastrous situation? 6. It is
highly desirable to get these values to be checked before another series o f experiments. 7. It is
sometimes very difficult to get people to agree upon most obvious things. 8. One can hardly expect
a true scientist to keep within the limits o f one narrow long-established field. 9. They believe the
substance to have dissolved. 10. We expect this prediction to be quite reliable.
Exercise 6. Learn to distinguish between active and passive infinitives in the Complex Object Infinitive Construction. 1. This allowed him to follow the rules. This allowed the rules to be followed. 2. This
information enabled the scientist to make a forecast for the next few years. This information
enabled forecasts for the next few years to be made. 3. This analysis permitted them to settle the
problem directly. This analysis permitted the problem to be settled directly. 4. They asked the
committee to support the project both with money and manpower. They asked the project to be
supported both with money and manpower. 5. They had the chairman keep the discussion within
reasonable limits. They had the discussion be kept within the reasonable limits. 6. They made him
leave the problem out o f his research. They made the problem be left out o f his research. 7. He got
his assistant to extend the range o f observation. He got the range o f observation to be extended. 8.
He had his assistant represent our research group at the last symposium. He had our research group
be represented at the last symposium. 9. The head o f the research institute ordered his employees to
follow strictly his instructions. The head o f the research institute ordered his instructions to be
strictly followed. 10. The chairman requested the speaker to observe the time-limit. The chairman
requested the time-limit to be observed.
