| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it have been for | 83 |
|
| 2 | it have [been] for | 83 |
|
| 3 | it had [been] for | 40 |
|
| 4 | it has [been] for | 34 |
|
| 5 | it 's [been] for | 8 |
|
