| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [vb pp] at improving the [noun sg] | 8 |
|
| 2 | [be] [vb pp] at improving the [noun sg] | 5 |
|
| 3 | be [vb pp] at improving the [noun sg] | 5 |
|
| 4 | [vb pp] at improving the [noun sg] [prep] | 10 |
|
| 5 | [vb pp] at improving the [noun sg] of | 10 |
|
| 6 | [vb pp] at improving the [noun sg] [prep] | 10 |
|
| 7 | [vb pp] at improving the [noun sg] of | 10 |
|
