| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | became the first [adj] [noun sg] of | 16 |
|
| 2 | became the first [adj] [noun sg] to | 10 |
|
| 3 | became the first [adj] head [prep] | 5 |
|
| 4 | became the first [adj] [noun sg] in | 5 |
|
