| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] required by [adj] [noun sg] | 14 |
|
| 2 | as required by [adj] [noun sg] | 12 |
|
| 3 | [subord] required by [det] [noun sg] | 7 |
|
| 4 | [subord] required by [adj] [noun sg] | 7 |
|
