| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | introduced [prep] the first time [prep] | 7 |
|
| 2 | introduced [prep] the [num ord] time [prep] | 7 |
|
| 3 | introduced [prep] the [adj] time [prep] | 7 |
|
| 4 | introduced [prep] the first time [prep] | 7 |
|
| 5 | introduced for the [adj] time [prep] | 7 |
|
