| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is not easy [prep] [pers pn] [to-vb] | 7 |
|
| 2 | is not easy for [pron] [to-vb] | 7 |
|
| 3 | is not easy [prep] [pron] [to-vb] | 7 |
|
| 4 | is not easy [prep] [pron] [to-vb] | 7 |
|
| 5 | is not easy for [pron] [to-vb] | 7 |
|
