| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] [prep] an | 1381 |
|
| 2 | [modal v] [verb] us [prep] | 662 |
|
| 3 | [verb] us [prep] an | 119 |
|
| 4 | [modal v] [verb] us an | 21 |
|
