| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be required [verb] [det] [noun] | 147 |
|
| 2 | be [verb] use [det] [noun] | 133 |
|
| 3 | be [vb pp] use [det] [noun] | 122 |
|
| 4 | be required use [adj] [noun] | 64 |
|
| 5 | be require use [det] [noun] | 63 |
|
| 6 | [be] required use [det] [noun] | 63 |
|
