| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must be [noun pl] [prep] [det] [noun] | 12 |
|
| 2 | must be [noun pl] [prep] [det] [noun sg] | 9 |
|
| 3 | must be [noun pl] of [det] [noun] | 8 |
|
| 4 | must be [noun pl] [prep] that [noun] | 8 |
|
| 5 | must be nationals [prep] [det] [noun] | 7 |
|
| 6 | must be [noun pl] [prep] [det] member | 6 |
|
| 7 | must be [noun pl] [prep] [det] member | 6 |
|
