| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [verb] for a | 131 |
|
| 2 | had been [verb] for [adv] | 97 |
|
| 3 | had been [verb] [adv] a | 40 |
|
| 4 | been [verb] for [adv] a | 26 |
|
| 5 | had [verb] for [adv] a | 12 |
|
