| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | this be before | 21 |
|
| 2 | this was before | 13 |
|
| 3 | this [was/were] before | 13 |
|
| 4 | this is before | 8 |
|
| 5 | this [is] before | 8 |
|
