| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it have been for [adj] | 20 |
|
| 2 | it [vb -s] been for [adj] | 16 |
|
| 3 | it has been for [adj] | 14 |
|
| 4 | it [verb] been for [num] | 10 |
|
| 5 | it [verb] been for [det] | 7 |
|
