| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [vb infin] a [noun sg] | 19426 |
|
| 2 | [Wh det] [modal v] [vb infin] [noun sg] | 1084 |
|
| 3 | [Wh det] [modal v] [vb infin] a | 896 |
|
| 4 | [Wh det] [modal v] a [noun sg] | 32 |
|
