| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [adv] necessary [to-vb] [adv prt] | 34 |
|
| 2 | be [adv] necessary [verb] [adv prt] | 27 |
|
| 3 | is [adv] necessary [verb] [adv prt] | 26 |
|
| 4 | be [adv] necessary [verb] out | 16 |
|
| 5 | be [not/n't] necessary [verb] [adv prt] | 7 |
|
| 6 | be not necessary [verb] [adv prt] | 7 |
|
| 7 | be therefore necessary [verb] [adv prt] | 6 |
|
| 8 | be not necessary [verb] [adv prt] | 6 |
|
| 9 | be therefore necessary [verb] [adv prt] | 6 |
|
| 10 | be [adv] necessary [verb] down | 5 |
|
| 11 | be [adv] necessary [verb] up | 5 |
|
