| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] introduce for | 93 |
|
| 2 | be introduce for | 93 |
|
| 3 | [be] introduced for | 90 |
|
| 4 | be introduce for | 36 |
|
| 5 | [be] introduce for | 36 |
|
| 6 | [was/were] introduce for | 29 |
|
| 7 | [been] introduce for | 17 |
|
| 8 | been introduce for | 17 |
|
| 9 | was introduce for | 16 |
|
| 10 | were introduce for | 13 |
|
| 11 | is introduce for | 6 |
|
| 12 | [is] introduce for | 6 |
|
