| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [art] [noun] [was/were] | 720 |
|
| 2 | [prep] [art] time [was/were] | 222 |
|
| 3 | [prep] [art] time [was/were] | 222 |
|
| 4 | at [art] time [be] | 193 |
|
| 5 | at [art] time [was/were] | 155 |
|
| 6 | at [art] time [was/were] | 155 |
|
