| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] an [noun] | 60396 |
|
| 2 | [vb -s] [prep] [noun] | 30884 |
|
| 3 | [vb -s] an [noun] | 4659 |
|
| 4 | [vb -s] [prep] an | 2309 |
|
