| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [conj] [vb infin] [prep] | 555 |
|
| 2 | [adv] [vb infin] back [prep] | 316 |
|
| 3 | [conj] [vb infin] back [prep] | 57 |
|
| 4 | [adv] [conj] back [prep] | 41 |
|
| 5 | [adv] [conj] [vb infin] back | 23 |
|
