| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [been] [v-ing] [prep] | 1917 |
|
| 2 | had [been] there [prep] | 90 |
|
| 3 | [been] [v-ing] there [prep] | 41 |
|
| 4 | had [been] [v-ing] there | 28 |
|
