| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] become a [noun] | 459 |
|
| 2 | [vb -s] become a [noun sg] | 452 |
|
| 3 | [vb -s] [verb] a issue | 10 |
|
| 4 | [verb] become a issue | 9 |
|
| 5 | [vb -s] become a issue | 7 |
|
| 6 | [vb -s] become [art] issue | 7 |
|
