| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] for [det] | 956 |
|
| 2 | be [vb pp] for [det] | 876 |
|
| 3 | be introduced [prep] [det] | 44 |
|
| 4 | be introduced for [det] | 16 |
|
| 5 | [be] introduced for [det] | 16 |
|
| 6 | be introduced for [adj] | 13 |
|
| 7 | [be] introduced for [det] | 10 |
|
| 8 | be introduce for [det] | 10 |
|
