| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb base] [be] [v-ing] | 59 |
|
| 2 | [Wh det] [vb base] be [v-ing] | 59 |
|
| 3 | [Wh det] have [be] [v-ing] | 46 |
|
| 4 | [Wh det] [vb base] [been] [v-ing] | 45 |
|
| 5 | [Wh det] [vb base] been [v-ing] | 45 |
|
| 6 | [Wh det] [vb base] is [v-ing] | 11 |
|
| 7 | [Wh det] [vb base] [is] [v-ing] | 11 |
|
| 8 | [Wh det] [vb base] [be] going | 6 |
|
