| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [modal v] be months | 24 |
|
| 2 | it [vb mod] [be] months | 24 |
|
| 3 | it could [be] months | 7 |
|
| 4 | it could [be] months | 7 |
|
| 5 | it may [be] months | 6 |
|
| 6 | it may [be] months | 6 |
|
