| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [adv] necessary [to-vb] [adv prt] | 27 |
|
| 2 | is [adv] necessary [verb] [adv prt] | 26 |
|
| 3 | [is] [adv] necessary [verb] [adv prt] | 21 |
|
| 4 | [is] [adv] necessary [verb] out | 13 |
|
| 5 | [is] [not/n't] necessary [verb] [adv prt] | 6 |
|
| 6 | [is] not necessary [verb] [adv prt] | 6 |
|
| 7 | [is] not necessary [verb] [adv prt] | 5 |
|
| 8 | [is] therefore necessary [verb] [adv prt] | 5 |
|
| 9 | [is] therefore necessary [verb] [adv prt] | 5 |
|
