| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have be before | 82 |
|
| 2 | have [been] before | 81 |
|
| 3 | have been before | 81 |
|
| 4 | had [be] before | 54 |
|
| 5 | have [be] before | 8 |
|
| 6 | has [be] before | 7 |
|
