| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] is it necessary | 21 |
|
| 2 | [coord] is it necessary | 16 |
|
| 3 | [conj] is it necessary | 16 |
|
| 4 | why is it necessary | 14 |
|
| 5 | [Wh adv] is it necessary | 14 |
|
| 6 | why is it necessary | 14 |
|
| 7 | nor is it necessary | 13 |
|
| 8 | nor is it necessary | 13 |
|
| 9 | [adv] is it necessary | 6 |
|
| 10 | is it [adv] necessary | 15 |
|
| 11 | is it [adv] necessary | 13 |
|
| 12 | is it really necessary | 8 |
|
| 13 | is it really necessary | 8 |
|
| 14 | is it necessary [to-vb] | 34 |
|
| 15 | is it necessary [verb] | 34 |
|
| 16 | is it necessary [prep] | 17 |
|
| 17 | is it necessary [prep] | 17 |
|
| 18 | is it necessary for | 13 |
|
| 19 | is it necessary for | 13 |
|
| 20 | is it necessary [conj] | 7 |
|
| 21 | is it necessary [that] | 5 |
|
| 22 | is it necessary that | 5 |
|
| 23 | is it necessary that | 5 |
|
