| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to the back [prep] | 367 |
|
| 2 | to the back of | 364 |
|
| 3 | to the back of | 364 |
|
| 4 | to the back [prep] | 360 |
|
| 5 | to the backs [prep] | 7 |
|
