| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [adv] [verb] [adj] [noun pl] | 325 |
|
| 2 | [is] [adv] necessary [verb] [adj] | 85 |
|
| 3 | [is] necessary [verb] [adj] [noun pl] | 65 |
|
| 4 | [adv] necessary [verb] [adj] [noun pl] | 30 |
|
| 5 | [is] [adv] necessary [verb] [noun pl] | 18 |
|
