| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must be [vb pp] that [det] [noun] | 48 |
|
| 2 | must [be] [vb pp] that [det] [noun sg] | 22 |
|
| 3 | must [be] [vb pp] that [det] [noun pl] | 22 |
|
| 4 | must [be] [vb pp] that these [noun] | 17 |
|
| 5 | must [be] remembered that [det] [noun] | 15 |
|
| 6 | must [be] [vb pp] that this [noun] | 14 |
|
| 7 | must [be] stressed that [det] [noun] | 6 |
|
| 8 | must [be] said that [det] [noun] | 5 |
|
