| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | become the first [adj] [noun sg] of | 26 |
|
| 2 | became the first [adj] [noun sg] of | 16 |
|
| 3 | become the first [adj] head of | 5 |
|
| 4 | to become the first [adj] [noun sg] of | 5 |
|
