| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] [to-vb] [prep] [noun] | 2280 |
|
| 2 | [to-vb] back [prep] [noun] | 763 |
|
| 3 | [vb infin] back [prep] [noun] | 558 |
|
| 4 | [vb infin] [to-vb] back [prep] | 296 |
|
| 5 | [vb infin] [to-vb] back [noun] | 8 |
|
