| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [adv] become [art] [adj] [noun] | 68 |
|
| 2 | has since [verb] [art] [adj] [noun] | 25 |
|
| 3 | has since become [art] [adj] [noun] | 6 |
|
| 4 | [verb] since become [art] [adj] [noun] | 5 |
|
| 5 | [vb -s] since become [art] [adj] [noun] | 5 |
|
| 6 | have since become [art] [adj] [noun] | 5 |
|
