| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [vb infin] [prep] a | 7831 |
|
| 2 | [modal v] [vb infin] [prep] [unc] | 449 |
|
| 3 | [modal v] [vb infin] a [unc] | 136 |
|
| 4 | [vb infin] [prep] a [unc] | 31 |
|
