| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] have become a [adj] feature | 11 |
|
| 2 | [noun] [verb] become a [adj] feature | 11 |
|
| 3 | [noun] has become a [adj] feature | 7 |
|
| 4 | [noun] [vb -s] become a [adj] feature | 7 |
|
| 5 | [noun pl] [verb] become a [adj] feature | 6 |
|
| 6 | [noun sg] [verb] become a [adj] feature | 5 |
|
