| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [verb] a [adj] [noun] to | 74 |
|
| 2 | [be] [verb] a [adj] contribution to | 15 |
|
| 3 | be [verb] a [adj] contribution to | 15 |
|
| 4 | is [verb] a [adj] contribution [prep] | 8 |
|
| 5 | is [verb] [art] [adj] contribution to | 8 |
|
| 6 | is [verb] a [adj] contribution [prep] | 8 |
|
| 7 | is [verb] a [adj] contribution to | 8 |
|
| 8 | [is] [verb] a [adj] contribution to | 8 |
|
| 9 | is [verb] a [adj] contribution to | 8 |
|
