| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] [modal v] be [vb pp] [adv prt] | 1447 |
|
| 2 | [noun pl] must be [vb pp] [adv] | 252 |
|
| 3 | [noun] must be [vb pp] [adv prt] | 241 |
|
| 4 | [noun pl] must be [verb] [adv prt] | 96 |
|
| 5 | [noun pl] must [be] [vb pp] [adv prt] | 86 |
|
| 6 | [noun pl] must be [vb pp] [adv prt] | 86 |
|
| 7 | [noun pl] must [be] [vb pp] [adv prt] | 86 |
|
