| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] become [adv] [vb pp] [adv] [prep] | 7 |
|
| 2 | have become [adv] [vb pp] [adv] [prep] | 7 |
|
| 3 | [vb -s] become [adv] [vb pp] [adv] [prep] | 5 |
|
| 4 | has become [adv] [vb pp] [adv] [prep] | 5 |
|
