| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [vb -s] [verb] a [noun] | 183 |
|
| 2 | [pron] [vb -s] become a [noun] | 128 |
|
| 3 | [Wh det] [verb] become a [noun] | 34 |
|
| 4 | [Wh det] [vb -s] become [art] [noun] | 30 |
|
