| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] have been [v-ing] on [prep] | 33 |
|
| 2 | [Wh det] have been [v-ing] on [prep] | 33 |
|
| 3 | [Wh det] have been going on [prep] | 31 |
|
| 4 | which have been [v-ing] on [prep] | 19 |
|
| 5 | what have been [v-ing] on [prep] | 14 |
|
| 6 | [Wh det] have been [v-ing] on for | 13 |
|
| 7 | [Wh det] had been [v-ing] on [prep] | 13 |
|
| 8 | [Wh det] have been [v-ing] on for | 13 |
|
| 9 | [Wh det] have been [v-ing] on in | 11 |
|
| 10 | [Wh det] have been [v-ing] on in | 11 |
|
| 11 | [Wh det] has been [v-ing] on [prep] | 11 |
|
| 12 | [Wh det] 's been [v-ing] on [prep] | 6 |
|
