| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be necessary for [det] | 72 |
|
| 2 | be necessary for [adj] | 60 |
|
| 3 | is necessary for [adj] | 50 |
|
| 4 | be necessary for [adj] | 42 |
|
| 5 | are necessary for [adj] | 22 |
|
| 6 | be necessary for this | 14 |
|
| 7 | be necessary for this | 14 |
|
| 8 | be necessary for that | 13 |
|
| 9 | be necessary for all | 13 |
|
| 10 | be necessary for all | 13 |
|
| 11 | be necessary for that | 13 |
|
| 12 | was necessary for [adj] | 11 |
|
| 13 | be necessary for any | 7 |
|
| 14 | be necessary for any | 7 |
|
| 15 | were necessary for [adj] | 7 |
|
| 16 | be necessary for such | 7 |
|
| 17 | be necessary for such | 7 |
|
| 18 | be necessary for some | 5 |
|
| 19 | be necessary for some | 5 |
|
