| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [verb] a [adj] [noun] | 22120 |
|
| 2 | [verb] introduce [art] [adj] [noun] | 186 |
|
| 3 | [verb] introduce [art] [adj] [noun] | 186 |
|
| 4 | [verb] introduce a [adj] [noun] | 157 |
|
| 5 | [verb] introduce a [adj] [noun] | 149 |
|
