| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] had been [v-ing] for [noun pl] | 18 |
|
| 2 | [pron] had been [v-ing] for years | 9 |
|
| 3 | they had been [v-ing] for [noun pl] | 6 |
|
| 4 | they had been [v-ing] for [noun pl] | 6 |
|
