| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] must have | 5556 |
|
| 2 | there [modal v] have | 1092 |
|
| 3 | there must [verb] | 301 |
|
| 4 | there must [vb infin] | 301 |
|
| 5 | there must have | 271 |
|
