| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] an [noun sg] [verb] | 6337 |
|
| 2 | [prep] [noun sg] [verb] a | 4134 |
|
| 3 | an [noun sg] [verb] a | 970 |
|
| 4 | [prep] an [noun sg] a | 90 |
|
