| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [prep] [det] [noun] | 7407 |
|
| 2 | be require [prep] [noun] | 418 |
|
| 3 | require [prep] [det] [noun] | 228 |
|
| 4 | be require [prep] [det] | 162 |
|
| 5 | be require [det] [noun] | 12 |
|
