| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh pn] has been [verb] | 540 |
|
| 2 | [Wh pn] has been [v-ing] | 200 |
|
| 3 | [Wh pn] [verb] been doing | 33 |
|
| 4 | [Wh pn] have been doing | 33 |
|
| 5 | [pron] has been doing | 19 |
|
| 6 | [Wh pn] [vb -s] been doing | 10 |
|
| 7 | [Wh pn] has be doing | 6 |
|
| 8 | [Wh pn] has been do | 6 |
|
| 9 | [Wh pn] has [been] doing | 6 |
|
| 10 | [Wh pn] has [be] doing | 6 |
|
