| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] have been [verb] [prep] | 3113 |
|
| 2 | [Wh det] have been [v-ing] [prep] | 195 |
|
| 3 | [pron] have been happening [prep] | 58 |
|
| 4 | [Wh det] have [be] happening [prep] | 55 |
|
| 5 | [Wh det] have [been] happening [prep] | 55 |
|
| 6 | [Wh det] have been happening [prep] | 55 |
|
| 7 | [Wh det] [verb] been happening [prep] | 55 |
|
| 8 | [Wh det] have be happening [prep] | 55 |
|
| 9 | [Wh det] have been happen [prep] | 55 |
|
