| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be necessary [verb] [art] | 909 |
|
| 2 | [be] necessary [to-vb] [art] | 906 |
|
| 3 | [be] necessary [verb] the | 612 |
|
| 4 | [is] necessary [verb] [art] | 446 |
|
| 5 | is necessary [verb] [art] | 432 |
|
| 6 | [be] necessary [verb] [art] | 255 |
|
| 7 | be necessary [verb] [art] | 255 |
|
| 8 | [be] necessary [verb] a | 254 |
|
| 9 | [was/were] necessary [verb] [art] | 139 |
|
| 10 | was necessary [verb] [art] | 125 |
|
| 11 | are necessary [verb] [art] | 40 |
|
| 12 | [be] necessary [verb] an | 40 |
|
| 13 | [am/are] necessary [verb] [art] | 40 |
|
| 14 | [be] necessary have [art] | 34 |
|
| 15 | [be] necessary to have [art] | 32 |
|
| 16 | [be] necessary consider [art] | 30 |
|
| 17 | [be] necessary to consider [art] | 30 |
|
| 18 | [be] necessary make [art] | 26 |
|
| 19 | [be] necessary to make [art] | 25 |
|
| 20 | [be] necessary to use [art] | 24 |
|
| 21 | been necessary [verb] [art] | 24 |
|
| 22 | [been] necessary [verb] [art] | 24 |
|
| 23 | [be] necessary use [art] | 24 |
|
| 24 | [be] necessary to examine [art] | 19 |
|
| 25 | [be] necessary examine [art] | 19 |
|
| 26 | [be] necessary to protect [art] | 16 |
|
| 27 | [be] necessary to provide [art] | 16 |
|
| 28 | [be] necessary protect [art] | 16 |
|
| 29 | [be] necessary provide [art] | 16 |
|
| 30 | [be] necessary understand [art] | 15 |
|
