| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb mod] [be] either | 22 |
|
| 2 | which [modal v] be either | 22 |
|
| 3 | which may [be] either | 10 |
|
| 4 | which may [be] either | 10 |
|
| 5 | which can [be] either | 5 |
|
| 6 | which can [be] either | 5 |
|
