| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was before | 176 |
|
| 2 | been before | 92 |
|
| 3 | is before | 69 |
|
| 4 | be before | 51 |
|
| 5 | were before | 41 |
|
| 6 | 's before | 32 |
|
| 7 | are before | 20 |
|
| 8 | being before | 5 |
|
