| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it had been [art] [det] [noun] | 5 |
|
| 2 | it [verb] been [art] [det] [noun] | 5 |
|
| 3 | it [vb past] been [art] [det] [noun] | 5 |
|
| 4 | it have been [art] [det] [noun] | 5 |
|
