| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | then [pron] must | 509 |
|
| 2 | then [indef pn] [modal v] | 169 |
|
| 3 | then [indef pn] [vb mod] | 169 |
|
| 4 | [adv] [indef pn] must | 75 |
|
| 5 | then [indef pn] must | 17 |
|
