| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was [verb] [prep] the first | 287 |
|
| 2 | was introduce [prep] the [adj] | 73 |
|
| 3 | [be] introduce [prep] the first | 15 |
|
| 4 | be introduce [prep] the first | 15 |
|
| 5 | [was/were] introduce [prep] the first | 8 |
|
| 6 | was introduce [prep] [art] first | 5 |
|
| 7 | was introduce [prep] the first | 5 |
|
