| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [Wh det] [modal v] [verb] a | 301 |
|
| 2 | an [noun sg] [Wh det] [modal v] [verb] | 187 |
|
| 3 | an [noun sg] [modal v] [verb] a | 94 |
|
| 4 | an [noun sg] [Wh det] [verb] a | 77 |
|
