| Share | Phrase |
|---|
| 17.19% | perforate hole [perform operation] |
| 15.08% | hole [using as instrument] perforate |
| 13.50% | perforate wall [perform operation] |
| 13.15% | length [location] perforate |
| 10.21% | wall [location] perforate |
| 8.16% | perforate tube [perform operation] |
| 7.65% | perforate piston [perform operation] |
| 6.54% | perforate portion [perform operation] |
| 5.67% | perforate body [perform operation] |
| 2.81% | perforate modal may |