| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [verb] [adv] on | 111 |
|
| 2 | had been [verb] on a | 94 |
|
| 3 | been [verb] [adv] on a | 56 |
|
| 4 | had been [verb] [adv] a | 40 |
|
| 5 | had [verb] [adv] on a | 35 |
|
