| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] at [verb] the [noun sg] | 237 |
|
| 2 | [vb pp] [prep] improve the [noun sg] | 38 |
|
| 3 | [vb pp] [prep] improve the [noun sg] | 38 |
|
| 4 | [verb] at improve the [noun sg] | 22 |
|
| 5 | [vb pp] at improve the [noun] | 17 |
|
| 6 | [vb pp] at improve the [noun sg] | 17 |
|
| 7 | [vb pp] at improve [art] [noun sg] | 17 |
|
