| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [am/are] necessary for [adj] [noun] | 8 |
|
| 2 | [noun pl] [am/are] necessary for [adj] [noun] | 5 |
|
| 3 | [am/are] necessary for [art] [adj] [noun] | 15 |
|
| 4 | [am/are] necessary for [art] [adj] [noun] | 15 |
|
| 5 | [am/are] necessary for a [adj] [noun] | 10 |
|
| 6 | [am/are] necessary for a [adj] [noun] | 6 |
|
| 7 | [am/are] necessary for [v-ing] [adj] [noun] | 5 |
|
| 8 | [am/are] necessary for [verb] [adj] [noun] | 5 |
|
| 9 | [am/are] necessary for the [adj] [noun] | 5 |
|
| 10 | [am/are] necessary for the [adj] [noun] | 5 |
|
