| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | so i [vb base] been | 30 |
|
| 2 | so i [vb base] [been] | 30 |
|
| 3 | so i 've [been] | 24 |
|
| 4 | so i have [been] | 6 |
|
