| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it had [not/n't] been [prep] | 190 |
|
| 2 | had [not/n't] been [prep] [noun] | 122 |
|
| 3 | it had been [prep] [noun] | 75 |
|
| 4 | it [not/n't] been [prep] [noun] | 17 |
|
| 5 | it had [not/n't] been [noun] | 12 |
|
