| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be a [noun] [conj] | 9810 |
|
| 2 | at a [noun] [conj] | 922 |
|
| 3 | be at a [noun] | 762 |
|
| 4 | be at [noun] [conj] | 467 |
|
