| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [prep] some time | 8 |
|
| 2 | has be [prep] some time | 8 |
|
| 3 | has [be] for some time | 8 |
|
| 4 | has [been] [prep] some time | 8 |
|
