| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [be] [vb pp] back from | 13 |
|
| 2 | [vb mod] [be] [vb pp] back from | 13 |
|
| 3 | can [be] [vb pp] back from | 7 |
|
| 4 | can [be] [vb pp] back from | 7 |
|
| 5 | [be] [vb pp] back from [noun] | 9 |
|
