| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | we [vb base] [been] doing | 100 |
|
| 2 | we [vb base] been doing | 100 |
|
| 3 | we 've [been] doing | 73 |
|
| 4 | we have [been] doing | 27 |
|
