| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] [modal v] have been | 7895 |
|
| 2 | [modal v] have been easy | 92 |
|
| 3 | [pers pn] have been easy | 32 |
|
| 4 | [pers pn] [modal v] have easy | 5 |
|
