| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [v-ing] for [noun pl] | 42 |
|
| 2 | had been [v-ing] for [noun prp] | 24 |
|
| 3 | had been [v-ing] for year | 18 |
|
| 4 | had been [v-ing] for years | 18 |
|
| 5 | had been [v-ing] for [noun sg] | 14 |
|
| 6 | had been waiting for [noun] | 8 |
|
| 7 | had been looking for [noun] | 6 |
|
| 8 | had been [v-ing] for day | 5 |
|
| 9 | had been playing for [noun] | 5 |
|
| 10 | had been [v-ing] for days | 5 |
|
