| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [vb infin] it back | 6 |
|
| 2 | must get [pers pn] back | 6 |
|
| 3 | must [vb infin] him back | 5 |
|
| 4 | must take [pers pn] back | 5 |
|
