| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was first [verb] [prep] the | 199 |
|
| 2 | was first [vb pp] [prep] the | 197 |
|
| 3 | [be] first introduced [prep] the | 20 |
|
| 4 | be first introduced [prep] the | 20 |
|
| 5 | [was/were] first introduced [prep] the | 18 |
|
| 6 | was first introduced [prep] the | 13 |
|
| 7 | was first introduced [prep] [art] | 13 |
|
| 8 | was first introduced [prep] the | 13 |
|
| 9 | was first introduce [prep] the | 13 |
|
| 10 | was [adj] introduced [prep] the | 13 |
|
| 11 | was first introduced [prep] [art] | 13 |
|
