| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] it is [verb] a | 27 |
|
| 2 | difficult it [be] [verb] a | 16 |
|
| 3 | difficult it is [verb] [art] | 16 |
|
| 4 | difficult it be [verb] a | 16 |
|
| 5 | difficult it is [verb] [art] | 16 |
|
| 6 | difficult it is [verb] a | 10 |
|
| 7 | difficult it [is] [verb] a | 10 |
|
| 8 | difficult it is [verb] a | 10 |
|
| 9 | difficult [pron] is [verb] a | 10 |
|
| 10 | difficult [pers pn] is [verb] a | 10 |
|
