| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | and [vb mod] be left | 18 |
|
| 2 | and [vb mod] be left | 18 |
|
| 3 | and [vb mod] [be] left | 18 |
|
| 4 | and can [be] left | 7 |
|
| 5 | and should [be] left | 5 |
|
