| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is required for the [noun sg] | 35 |
|
| 2 | are required for the [noun sg] | 20 |
|
| 3 | be required for the [noun sg] | 10 |
|
| 4 | was required for the [noun sg] | 9 |
|
