| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | he had [been] [v-ing] [prep] | 310 |
|
| 2 | had [been] [v-ing] [pers pn] [prep] | 95 |
|
| 3 | he had [been] [v-ing] [pers pn] | 37 |
|
