| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] for [art] first [noun] | 289 |
|
| 2 | be [vb pp] for [art] first [noun] | 239 |
|
| 3 | be introduced for [art] [adj] [noun] | 12 |
|
| 4 | be introduced [prep] [art] first [noun] | 11 |
|
| 5 | be introduced [prep] [art] first [noun] | 11 |
|
| 6 | be introduce for [art] first [noun] | 6 |
|
| 7 | be introduced for [art] first [noun] | 6 |
|
| 8 | [be] introduced for [art] first [noun] | 6 |
|
| 9 | be introduced for [art] first [noun] | 6 |
|
| 10 | be introduced for [art] first [noun] | 6 |
|
| 11 | be introduced for [art] [num ord] [noun] | 6 |
|
