| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh pn] have [verb] [prep] | 3284 |
|
| 2 | have previously [verb] [prep] | 186 |
|
| 3 | [Wh pn] have previously [verb] | 107 |
|
| 4 | [Wh pn] previously [verb] [prep] | 9 |
|
