| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] it was | 2744 |
|
| 2 | difficult it [be] | 158 |
|
| 3 | difficult it be | 158 |
|
| 4 | difficult [pers pn] was | 42 |
|
| 5 | difficult [pron] was | 42 |
|
| 6 | difficult it was | 42 |
|
| 7 | difficult it [was/were] | 42 |
|
