| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [noun sg] | 407844 |
|
| 2 | [prep] [no cls] [noun sg] | 3179 |
|
| 3 | [prep] a [no cls] | 1806 |
|
| 4 | a [no cls] [noun sg] | 1508 |
|
