| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be to have [adj] [noun pl] | 73 |
|
| 2 | be necessary to have [adj] | 21 |
|
| 3 | be necessary to have [noun pl] | 7 |
|
| 4 | necessary to have [adj] [noun pl] | 6 |
|
