| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [ex0] [modal v] be | 16146 |
|
| 2 | then [ex0] be | 2142 |
|
| 3 | then [ex0] [modal v] | 303 |
|
| 4 | then [modal v] be | 78 |
|
