| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be at the head | 21 |
|
| 2 | was [prep] the head | 9 |
|
| 3 | is [prep] the head | 7 |
|
| 4 | be [prep] the head | 6 |
|
| 5 | been [prep] the head | 5 |
|
