| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] be do it for a | 5 |
|
| 2 | [vb base] be doing it for a | 5 |
|
| 3 | [vb base] been [verb] it for a | 5 |
|
| 4 | [vb base] be [v-ing] it for a | 5 |
|
