| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [noun sg] [prep] | 143684 |
|
| 2 | be a [noun sg] [prep] | 49857 |
|
| 3 | be [prep] [noun sg] [prep] | 12292 |
|
| 4 | be [prep] a [noun sg] | 8671 |
|
| 5 | be [prep] a [prep] | 10 |
|
