| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was introduced [prep] the [adj] [noun sg] | 46 |
|
| 2 | was introduce [prep] the [adj] [noun sg] | 27 |
|
| 3 | was introduce in the [adj] [noun sg] | 16 |
|
| 4 | was introduce [prep] the [num ord] [noun sg] | 12 |
|
| 5 | was introduce [prep] the [num] [noun sg] | 7 |
|
| 6 | was introduce by the [adj] [noun sg] | 7 |
|
| 7 | was introduce to the [adj] [noun sg] | 5 |
|
| 8 | was introduce for the [adj] [noun sg] | 5 |
|
| 9 | was introduce [prep] the first [noun sg] | 5 |
|
| 10 | was introduce [prep] the first [noun sg] | 5 |
|
