| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] at [art] [adj] [noun] | 2551 |
|
| 2 | be introduce [prep] [art] [adj] [noun] | 218 |
|
| 3 | be introduce [prep] [art] [adj] [noun] | 218 |
|
| 4 | be introduce at [art] [adj] [noun] | 13 |
|
| 5 | [be] introduce at [art] [adj] [noun] | 13 |
|
