| He | must might cant | know your sister be busy be ill be tired be hungry |
| He | must might cant | be | sleeping working hard watching TV having dinner playing football |
| He | must might cant | have | forgotten your address lost your book missed the train caught a cold fallen ill left the country sold his computer bought a car |
87. * : Indefinite Active Infinitive, Perfect Active Infinitive, Perfect Continuous Active Infinitive, Perfect Passive Infinitive:
1. Some biological defect might reside in hypothalamus.
2. The defect may have been found.
3. A nerve-regulating chemical might have influenced appetite regulation.
4. Some injections must have caused reduced food intake.
5. Injections of some drugs could have elicited satiety-like behaviour.
6. Overweight people should have known what to eat.
7. The percentage might have been larger.
8. Some patients have associated lesions which could have been the cause of haemorrhage.
9. One may suppose in early stage of hypertension that blood flow must have been increased.
10.Indeed, we could have compared the maximum concentrations.
11. Increased intake of milk could have provided more calcium and phosphate for absorption.
12.We know that thousands of people in some countries must have been suffering from AIDS for some years.
(PARTICIPLES)
| PAST PARTICIPLE (Past Participle) , : - :ask ed , connect ed , - : written made lost |
(Past Participle)
| The operated on patient is asleep now. The patient operated on looked happy. | |
| The patient operated onby Professor Brown yesterday will be discharged tomorrow. | |
| When operatedon the patient felt better. | |
| If operated on immediately the patients life may be saved. |
, , .
Demonstrated
Presented
Included
Translated
Elected
Organized
Summarized
Discussed
Detected
Treated
Directed
Tested
89. , Past Participle :
1. The techniques demonstrated in the lab are new.
2. A variety of problems presented in the journal gives readers insight in the field of medicine.
3. The reviews included covered new trends in science.
4. The aim of the research presented was to explore the subject in depth.
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5. Each journal contains papers translated into Russian.
6. Elected corresponding member in 1958 he became full member of the Academy in 1962.
7. When organized the laboratory studied nucleic acids.
9. The knowledge of functions and properties of cells summarized took place in the last two decades.
10. The problem discussed is of interest.
11. This problem, when discussed, attracted much attention.
12. The problem discussed attracted much attention.
13. If undetected and untreated mild hearing loss may give rise in some children to psychological, medical and educational problems.
14. Chloraseptic is not used for children under three unless directed by his physician.
15. When tested as a treatment for osteoporosis, the drug produced severe side-effects like stomach-bleeding.
