| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] difficult it was | 41 |
|
| 2 | [Wh adv] difficult it was | 37 |
|
| 3 | how difficult it was | 37 |
|
| 4 | how difficult it was | 37 |
|
| 5 | difficult [conj] it was | 10 |
|
| 6 | difficult [subord] it was | 7 |
|
| 7 | difficult it was [verb] | 24 |
|
| 8 | difficult it was [to-vb] | 22 |
|
| 9 | difficult it was [prep] | 11 |
|
| 10 | difficult it was [prep] | 11 |
|
| 11 | difficult it was for | 9 |
|
| 12 | difficult it was for | 9 |
|
