| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] at an earlier [noun sg] [prep] | 16 |
|
| 2 | [verb] at an [adj -er] [noun sg] in | 11 |
|
| 3 | [verb] at an [adj -er] stage [prep] | 11 |
|
| 4 | [vb pp] at an [adj -er] [noun sg] [prep] | 7 |
|
