| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is required for [adj] [noun] | 42 |
|
| 2 | [is] required for [adj] [noun sg] | 30 |
|
| 3 | [is] required for [adj] [noun] | 22 |
|
| 4 | [is] required for [det] [noun] | 19 |
|
| 5 | [is] required for [adj] [noun pl] | 11 |
|
| 6 | [is] required for this [noun] | 7 |
|
| 7 | [is] required for this [noun] | 7 |
|
| 8 | [is] required for each [noun] | 5 |
|
| 9 | [is] required for each [noun] | 5 |
|
