| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | introduce [prep] [art] [det] | 14 |
|
| 2 | introduced [prep] [art] [det] | 13 |
|
| 3 | introduce [prep] the [det] | 13 |
|
| 4 | introduce [prep] the [det] | 13 |
|
| 5 | introduce [prep] [art] same | 12 |
|
| 6 | introduce at [art] [det] | 8 |
|
