| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | do so a | 24 |
|
| 2 | [vb past] so a | 12 |
|
| 3 | did so a | 10 |
|
| 4 | [vb pp] so a | 7 |
|
| 5 | [vb base] so a | 6 |
|
| 6 | [v-ing] so a | 5 |
|
