| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [adv] been [v-ing] | 601 |
|
| 2 | had been [v-ing] [noun pl] | 145 |
|
| 3 | had [adv] been [noun pl] | 80 |
|
| 4 | [adv] been [v-ing] [noun pl] | 53 |
|
| 5 | had [adv] [v-ing] [noun pl] | 5 |
|
