| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] an [noun] | 4659 |
|
| 2 | become an [noun] | 843 |
|
| 3 | [vb -s] become an | 176 |
|
| 4 | [vb -s] become [noun] | 150 |
|
