| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] introduced a [adv] [adj] [noun] | 7 |
|
| 2 | have introduced a [adv] [adj] [noun] | 7 |
|
| 3 | [verb] introduced a [adv] [adj] [noun sg] | 7 |
|
| 4 | has introduced a [adv] [adj] [noun] | 5 |
|
| 5 | [vb -s] introduced a [adv] [adj] [noun] | 5 |
|
