| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that [verb] at a | 25 |
|
| 2 | [that] [vb -s] at a | 10 |
|
| 3 | [that] [vb base] at a | 8 |
|
| 4 | [that] [vb past] at a | 7 |
|
