| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh pn] [vb -s] a [noun sg] | 658 |
|
| 2 | [vb -s] become a [noun sg] | 407 |
|
| 3 | [Wh pn] become a [noun sg] | 73 |
|
| 4 | [Wh pn] [vb -s] become a | 20 |
|
