| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] [been] [v-ing] this | 105 |
|
| 2 | [vb base] been [v-ing] this | 105 |
|
| 3 | [vb base] be [v-ing] this | 105 |
|
| 4 | 've [be] [v-ing] this | 61 |
|
| 5 | have [be] [v-ing] this | 43 |
|
| 6 | [vb base] [be] doing this | 33 |
|
