| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [modal v] have become a | 18 |
|
| 2 | [noun] [vb mod] have become a | 18 |
|
| 3 | [noun] [modal v] have become a | 17 |
|
| 4 | [noun sg] [modal v] have become a | 12 |
|
