| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [vb infin] [be] [adv] considerable | 5 |
|
| 2 | must [vb infin] [be] very considerable | 5 |
|
| 3 | must [vb infin] [be] [adv] considerable | 5 |
|
| 4 | must [vb infin] [be] very considerable | 5 |
|
