| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [noun sg] | 407844 |
|
| 2 | [prep] [det] [noun sg] | 231507 |
|
| 3 | [prep] a [det] | 8648 |
|
| 4 | a [det] [noun sg] | 3523 |
|
