| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] for [art] [num ord] | 613 |
|
| 2 | be [vb pp] for [art] [num ord] | 469 |
|
| 3 | be introduced [prep] [art] [num ord] | 35 |
|
| 4 | be introduced [prep] [art] [num ord] | 35 |
|
| 5 | be introduced for [art] [adj] | 16 |
|
| 6 | be introduced for [art] [num ord] | 7 |
|
| 7 | be introduce for [art] [num ord] | 7 |
|
| 8 | [be] introduced for [art] [num ord] | 7 |
|
