| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] [modal v] [verb] a | 1118 |
|
| 2 | [subord] [det] [modal v] [verb] | 1069 |
|
| 3 | [subord] [det] [verb] a | 210 |
|
| 4 | [subord] [modal v] [verb] a | 11 |
|
