| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] be doing this for | 14 |
|
| 2 | [vb base] [been] doing this for | 14 |
|
| 3 | [vb base] been doing this for | 14 |
|
| 4 | 've [be] doing this for | 8 |
|
| 5 | have [be] doing this for | 6 |
|
