| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [verb] at first | 15 |
|
| 2 | which [vb past] at first | 7 |
|
| 3 | which had at first | 5 |
|
| 4 | which seem at first | 5 |
|
| 5 | which have at first | 5 |
|
