| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun prp] has [verb] a | 1923 |
|
| 2 | [noun prp] has [vb pp] a | 1902 |
|
| 3 | [noun] has become a | 502 |
|
| 4 | [noun prp] [verb] become a | 214 |
|
| 5 | [noun prp] have become a | 214 |
|
| 6 | [noun prp] has become [art] | 158 |
|
| 7 | [noun prp] [vb -s] become a | 106 |
|
| 8 | [noun prp] has become a | 104 |
|
