| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it have been very [adj] for | 10 |
|
| 2 | it have been very [adj] for | 10 |
|
| 3 | it have been very difficult for | 6 |
|
| 4 | it 's been very [adj] for | 6 |
|
| 5 | it have been very difficult for | 6 |
|
