| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] is it necessary [prep] | 6 |
|
| 2 | why is it necessary [prep] | 5 |
|
| 3 | [Wh adv] is it necessary [prep] | 5 |
|
| 4 | why is it necessary [prep] | 5 |
|
| 5 | is it [adv] necessary [prep] | 6 |
|
| 6 | is it [adv] necessary [prep] | 6 |
|
| 7 | is it necessary [prep] [art] | 6 |
|
| 8 | is it necessary [prep] [art] | 6 |
|
| 9 | is it necessary [prep] the | 5 |
|
| 10 | is it necessary [prep] the | 5 |
|
