| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have be [verb] at | 424 |
|
| 2 | have be introduce [prep] | 70 |
|
| 3 | have be introduce [prep] | 70 |
|
| 4 | have be introduce at | 14 |
|
| 5 | [verb] be introduce at | 14 |
|
| 6 | [vb base] be introduce at | 5 |
|
| 7 | have be introduce at | 5 |
|
| 8 | have [be] introduce at | 5 |
|
