| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] patients have been | 7 |
|
| 2 | [prep] patients have be | 7 |
|
| 3 | [prep] patients have [been] | 7 |
|
| 4 | [prep] patients have [be] | 7 |
|
| 5 | of patients have [be] | 5 |
|
| 6 | of patients have [be] | 5 |
|
