| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] have become a [adj] [noun sg] | 39 |
|
| 2 | [noun pl] has become a [adj] [noun] | 17 |
|
| 3 | [noun pl] have become a [adj] [noun] | 14 |
|
| 4 | [noun pl] had become a [adj] [noun] | 9 |
|
| 5 | [noun pl] have become a major [noun] | 8 |
|
| 6 | [noun pl] have become a [adj] feature | 6 |
|
| 7 | [noun pl] have become a [adj] feature | 6 |
|
