| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] it [vb past] been [num] [noun pl] | 8 |
|
| 2 | [subord] it had been [num] [noun] | 8 |
|
| 3 | [subord] it [vb past] been [num] year | 7 |
|
| 4 | [subord] it [vb past] been [num] years | 7 |
|
