| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be necessary for [art] | 328 |
|
| 2 | [be] necessary for [art] | 328 |
|
| 3 | [be] necessary for the | 263 |
|
| 4 | [be] necessary for the | 263 |
|
| 5 | [is] necessary for [art] | 118 |
|
| 6 | is necessary for [art] | 117 |
|
| 7 | be necessary for [art] | 89 |
|
| 8 | [be] necessary for [art] | 89 |
|
| 9 | [was/were] necessary for [art] | 66 |
|
| 10 | [be] necessary for a | 64 |
|
| 11 | was necessary for [art] | 58 |
|
| 12 | [be] necessary for a | 49 |
|
| 13 | [am/are] necessary for [art] | 45 |
|
| 14 | are necessary for [art] | 45 |
|
| 15 | [be] necessary for an | 15 |
|
| 16 | were necessary for [art] | 8 |
|
| 17 | [been] necessary for [art] | 7 |
|
| 18 | been necessary for [art] | 7 |
|
