| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that it has been [adj] | 29 |
|
| 2 | that it has [been] [adj] | 29 |
|
| 3 | that it has [been] difficult | 5 |
|
| 4 | that it has [been] difficult | 5 |
|
