| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [v-ing] [adv] since [noun] | 7 |
|
| 2 | had been [v-ing] [adv] since [noun] | 5 |
|
| 3 | had been [v-ing] since the [noun] | 7 |
|
| 4 | had been [v-ing] since the [noun] | 7 |
|
| 5 | had been [v-ing] since [art] [noun] | 7 |
|
| 6 | had been [v-ing] since [art] [noun] | 7 |
|
| 7 | had been [v-ing] since [pron] [noun] | 5 |
|
| 8 | had been [v-ing] since [pos pn] [noun] | 5 |
|
