| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] [prep] the | 1947 |
|
| 2 | [vb infin] back [prep] the | 673 |
|
| 3 | could [vb infin] back [prep] | 145 |
|
| 4 | could [vb infin] back the | 14 |
|
