| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] for the first [noun] | 286 |
|
| 2 | be [vb pp] for the first [noun] | 238 |
|
| 3 | be introduced for the [adj] [noun] | 12 |
|
| 4 | be introduced [prep] the first [noun] | 11 |
|
| 5 | be introduced [prep] the first [noun] | 11 |
|
| 6 | be introduced for [art] first [noun] | 6 |
|
| 7 | [be] introduced for the first [noun] | 6 |
|
| 8 | be introduced for [art] first [noun] | 6 |
|
| 9 | be introduced for the first [noun] | 6 |
|
| 10 | be introduced for the first [noun] | 6 |
|
| 11 | be introduced for the [num ord] [noun] | 6 |
|
| 12 | be introduced for the first [noun] | 6 |
|
| 13 | be introduce for the first [noun] | 6 |
|
