| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | patients who have [noun] [prep] [adj] | 7 |
|
| 2 | patients [Wh pn] have [noun] [prep] [adj] | 6 |
|
| 3 | patients [Wh pn] had [noun] [prep] [adj] | 5 |
|
