| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] has become a [noun] | 193 |
|
| 2 | [noun] has a central [noun] | 16 |
|
| 3 | has become a central [noun] | 7 |
|
| 4 | [noun] has become a central | 7 |
|
| 5 | [noun] become a central [noun] | 6 |
|
