| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | before [conj] at the [noun] | 17 |
|
| 2 | [prep] [conj] at the time | 13 |
|
| 3 | before [conj] [prep] the time | 12 |
|
| 4 | before [conj] at [art] time | 10 |
|
