| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | back to [pron] | 3523 |
|
| 2 | back to [pers pn] | 1103 |
|
| 3 | [adv] to us | 489 |
|
| 4 | [adv prt] to us | 364 |
|
| 5 | back [prep] us | 150 |
|
| 6 | back to we | 94 |
|
| 7 | back to us | 93 |
|
