| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] i [vb infin] [prep] | 102 |
|
| 2 | could [vb infin] i [prep] | 86 |
|
| 3 | could i [vb infin] [prep] | 82 |
|
| 4 | could [vb infin] i [vb infin] | 63 |
|
| 5 | could [vb infin] [vb infin] [prep] | 11 |
|
