| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [adv] [vb infin] back [adj] [noun] | 9 |
|
| 2 | [modal v] [not/n't] [vb infin] back [adj] [noun] | 5 |
|
| 3 | [modal v] [adv] [vb infin] back [adj] [noun sg] | 5 |
|
| 4 | [modal v] not [vb infin] back [adj] [noun] | 5 |
|
