| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [vb pp] at a [adj -er] [noun sg] | 9 |
|
| 2 | [adv] [vb pp] at a later [noun] | 6 |
|
| 3 | [adv] [vb pp] at a [adj -er] date | 5 |
|
| 4 | [adv] [vb pp] at a [adj -er] date | 5 |
|
