| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun prp] [verb] back [prep] [noun] | 348 |
|
| 2 | [noun] [to-vb] back [prep] [noun] | 143 |
|
| 3 | [noun prp] [to-vb] [adv] [prep] [noun] | 136 |
|
| 4 | [noun prp] [to-vb] [adv prt] [prep] [noun] | 87 |
|
| 5 | [noun prp] [to-vb] back [prep] [noun] | 17 |
|
