| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] become the first | 17 |
|
| 2 | [vb past] become [art] first | 17 |
|
| 3 | [vb past] become the first | 17 |
|
| 4 | had become [art] first | 10 |
|
| 5 | [vb past] become [art] first | 10 |
|
| 6 | [vb past] to become [art] first | 5 |
|
