| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was a [noun sg] at the | 197 |
|
| 2 | was a knock at the | 33 |
|
| 3 | was a knock at the | 33 |
|
| 4 | was a tap at the | 13 |
|
| 5 | was a tap at the | 13 |
|
| 6 | was a student at the | 7 |
|
| 7 | was a student at the | 7 |
|
| 8 | was a guest at the | 5 |
|
| 9 | was a guest at the | 5 |
|
