| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] had been head | 6 |
|
| 2 | had been head of | 11 |
|
| 3 | had been head of | 11 |
|
| 4 | had been head [prep] | 11 |
|
| 5 | had been head [prep] | 11 |
|
