| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] has become a [adj] feature | 7 |
|
| 2 | [noun sg] has become a [adj] feature | 5 |
|
| 3 | has become a [adj] feature [prep] | 9 |
|
| 4 | has become a [adj] feature [prep] | 9 |
|
| 5 | has become a [adj] feature of | 6 |
|
| 6 | has become a [adj] feature of | 6 |
|
