| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [conj] there must be | 9 |
|
| 2 | is that [ex0] must be | 9 |
|
| 3 | is [conj] [ex0] must be | 9 |
|
| 4 | is that [ex0] must be | 9 |
|
| 5 | is [that] [ex0] must be | 9 |
|
