| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] [pron] [to-vb] | 4447 |
|
| 2 | [modal v] [vb infin] [pron] [to-vb] | 4411 |
|
| 3 | [modal v] ask [pron] [verb] | 223 |
|
| 4 | [modal v] ask [pron] [to-vb] | 218 |
|
