| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it must be [adj] | 473 |
|
| 2 | it must be possible | 35 |
|
| 3 | it must be able | 16 |
|
| 4 | it must be clear | 15 |
|
| 5 | it must be right | 14 |
|
| 6 | it must be true | 14 |
|
| 7 | it must be difficult | 13 |
|
| 8 | it must be good | 12 |
|
| 9 | it must be obvious | 12 |
|
| 10 | it must be nice | 10 |
|
| 11 | it must be wonderful | 8 |
|
| 12 | it must be hard | 8 |
|
| 13 | it must be awful | 8 |
|
| 14 | it must be easy | 7 |
|
| 15 | it must be terrible | 6 |
|
| 16 | it must be capable | 6 |
|
| 17 | it must be wrong | 6 |
|
| 18 | it must be prepared | 5 |
|
