| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be introduce for the [adj] time | 6 |
|
| 2 | be introduce for the [adj] time | 6 |
|
| 3 | be introduce for [art] first time | 6 |
|
| 4 | be introduce for [art] [adj] time | 6 |
|
| 5 | be introduce for [art] first time | 6 |
|
| 6 | be introduced for [art] [adj] time | 6 |
|
| 7 | be introduce for [art] [num ord] time | 6 |
|
