| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was [verb] at a | 489 |
|
| 2 | was [vb pp] at a | 348 |
|
| 3 | [be] discussed at a | 31 |
|
| 4 | be discussed at a | 31 |
|
| 5 | was discussed at [art] | 18 |
|
| 6 | was discussed at [art] | 18 |
|
| 7 | was discussed [prep] a | 16 |
|
| 8 | was discussed [prep] a | 16 |
|
| 9 | [was/were] discussed at a | 10 |
|
| 10 | was discussed at a | 8 |
|
| 11 | was discuss at a | 7 |
|
| 12 | was discussed at a | 7 |
|
