| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] required for [adj] [noun] | 42 |
|
| 2 | [conj] [is] required for [adj] | 8 |
|
| 3 | [conj] [is] for [adj] [noun] | 8 |
|
| 4 | [conj] [is] required for [noun] | 6 |
|
