| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | by [verb] [art] | 13349 |
|
| 2 | by [v-ing] [art] | 13331 |
|
| 3 | [prep] introducing [art] | 285 |
|
| 4 | [prep] introducing [art] | 285 |
|
| 5 | by introduce [art] | 106 |
|
| 6 | by introducing [art] | 105 |
|
| 7 | by introducing [art] | 105 |
|
