| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | were [vb pp] [prep] a [adj] | 1812 |
|
| 2 | patients were [vb pp] [prep] [adj] | 66 |
|
| 3 | patients were [vb pp] [prep] a | 22 |
|
| 4 | patients [vb pp] [prep] a [adj] | 11 |
|
