| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | back [prep] [noun prp] | 5480 |
|
| 2 | back [prep] [noun prp] | 5480 |
|
| 3 | [adv] for [noun prp] | 2327 |
|
| 4 | [adv prt] for [noun prp] | 794 |
|
| 5 | back for [noun] | 167 |
|
| 6 | back for [noun prp] | 49 |
|
| 7 | back for [noun prp] | 49 |
|
