| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be a [adj] improvement on | 43 |
|
| 2 | was a [adj] improvement on | 14 |
|
| 3 | is a [adj] improvement on | 14 |
|
| 4 | be a great improvement on | 9 |
|
| 5 | be a great improvement on | 9 |
|
| 6 | be a vast improvement on | 6 |
|
| 7 | be a vast improvement on | 6 |
|
| 8 | be a considerable improvement on | 5 |
|
| 9 | be a big improvement on | 5 |
|
| 10 | be a considerable improvement on | 5 |
|
| 11 | be a [adj] improvement on | 5 |
|
| 12 | be a big improvement on | 5 |
|
