| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] at a high [noun sg] [conj] | 9 |
|
| 2 | [verb] at a high level [conj] | 6 |
|
| 3 | [verb] at a high [noun sg] [coord] | 6 |
|
| 4 | [vb pp] at a high [noun sg] [conj] | 5 |
|
