| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | did [pers pn] [vb infin] [prep] | 2111 |
|
| 2 | [pers pn] [vb infin] back [prep] | 248 |
|
| 3 | did [pers pn] [vb infin] back | 56 |
|
| 4 | did [vb infin] back [prep] | 13 |
|
