| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] had been [v-ing] for | 186 |
|
| 2 | [noun] had been [v-ing] [adv] | 161 |
|
| 3 | had been [v-ing] [adv] for | 42 |
|
| 4 | [noun] had been [adv] for | 27 |
|
