| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] required for [art] | 77 |
|
| 2 | [is] require for [art] | 77 |
|
| 3 | is require for [art] | 77 |
|
| 4 | [is] require for the | 56 |
|
| 5 | [is] require for the | 56 |
|
| 6 | [is] require for a | 18 |
|
| 7 | [is] require for a | 11 |
|
| 8 | [is] require for an | 7 |
|
