| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must go back [prep] the [noun] | 15 |
|
| 2 | must go back [prep] the [noun] | 15 |
|
| 3 | must go back to the [noun] | 13 |
|
| 4 | must go back to the [noun] | 13 |
|
| 5 | must go back [prep] the [noun sg] | 9 |
|
