| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [noun] [prep] [noun] | 67655 |
|
| 2 | [prep] a [noun sg] [prep] [noun] | 65272 |
|
| 3 | [prep] [art] form [prep] [noun] | 1563 |
|
| 4 | [prep] a form [prep] [noun] | 358 |
|
