| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [vb pp] [prep] an | 2508 |
|
| 2 | [was/were] [vb pp] for [art] | 2004 |
|
| 3 | [was/were] [vb pp] for [art] | 2004 |
|
| 4 | [was/were] [vb pp] for a | 597 |
|
| 5 | [be] [vb pp] for an | 293 |
|
| 6 | [was/were] [verb] for an | 139 |
|
