| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who had been [v-ing] [prep] | 160 |
|
| 2 | man who had been [v-ing] | 16 |
|
| 3 | man who had been [prep] | 13 |
|
| 4 | man had been [v-ing] [prep] | 9 |
|
