| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] to [be] concerned | 6 |
|
| 2 | [was/were] [prep] be concerned | 6 |
|
| 3 | [was/were] [prep] be concerned | 6 |
|
| 4 | [was/were] [prep] [be] concerned | 6 |
|
