| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [pron] [vb past] at [art] [noun] | 39 |
|
| 2 | what [pron] [vb past] at [art] [noun sg] | 34 |
|
| 3 | [pron] [pron] [vb past] at [art] time | 32 |
|
| 4 | what [pron] [verb] at [art] time | 18 |
|
| 5 | what [pron] [vb past] [prep] [art] time | 17 |
|
| 6 | what [pron] [vb past] [prep] [art] time | 17 |
|
| 7 | what [pron] [vb past] at [art] time | 16 |
|
| 8 | what [pron] [vb past] at [art] time | 16 |
|
| 9 | what [pron] [vb past] at [art] time | 16 |
|
