| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [adv] [pers pn] is [verb] | 101 |
|
| 2 | [adv] difficult [pers pn] is [verb] | 67 |
|
| 3 | [prep] [adv] difficult [pers pn] is | 9 |
|
