| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | exhibition be [vb pp] in [num ord] month | 7 |
|
| 2 | exhibition be [verb] in [num ord] month | 7 |
|
| 3 | exhibition were [verb] in [num ord] month | 7 |
|
| 4 | exhibitions be [verb] in [num ord] month | 7 |
|
| 5 | exhibition be [verb] in last month | 7 |
|
