| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [been] [v-ing] [adv] [prep] | 370 |
|
| 2 | [noun pl] had [been] [v-ing] [prep] | 133 |
|
| 3 | [noun pl] had [been] [v-ing] [adv] | 62 |
|
| 4 | [noun pl] had [been] [adv] [prep] | 35 |
|
