| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | announcement [be] made at [art] [noun sg] | 6 |
|
| 2 | announcement be made at [art] [noun] | 6 |
|
| 3 | announcement [was/were] made at [art] [noun] | 5 |
|
| 4 | announcement was made at [art] [noun] | 5 |
|
