| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | and then become a | 21 |
|
| 2 | and then become a | 21 |
|
| 3 | [coord] then become a | 21 |
|
| 4 | [conj] then become a | 20 |
|
| 5 | [conj] then became a | 17 |
|
