| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun] [noun sg] | 215218 |
|
| 2 | [prep] an [noun] | 60396 |
|
| 3 | [prep] an [noun sg] | 57363 |
|
| 4 | an [noun] [noun sg] | 21173 |
|
