| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [to-vb] at least | 42 |
|
| 2 | had [to-vb] at [adv] | 18 |
|
| 3 | [vb past] [to-vb] at once | 11 |
|
| 4 | seemed [to-vb] at [adv] | 6 |
|
| 5 | [vb past] to have at [adv] | 5 |
|
