| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] and [vb infin] [det] problem | 6 |
|
| 2 | [to-vb] and [vb infin] [det] problem | 6 |
|
| 3 | to try and [vb infin] [det] problem | 5 |
|
| 4 | try and [vb infin] [det] problem | 5 |
|
