| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] has become a [adj] | 233 |
|
| 2 | [noun] become a [adj] issue | 12 |
|
| 3 | has become a [adj] issue | 11 |
|
| 4 | [noun] has become a issue | 5 |
|
