| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be introduce for [adj] [noun] [prep] | 5 |
|
| 2 | [be] introduce for [adj] [noun] [prep] | 5 |
|
| 3 | introduce for the [adj] [noun] [prep] | 9 |
|
| 4 | introduce for the [adj] [noun] [prep] | 9 |
|
| 5 | introduce for [art] [adj] [noun] [prep] | 9 |
|
| 6 | introduce for [art] [adj] [noun] [prep] | 9 |
|
