| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be necessary [verb] such statements | 6 |
|
| 2 | be necessary [verb] such statements | 6 |
|
| 3 | be necessary to understand [adj] statements | 6 |
|
| 4 | be necessary [verb] [adj] statements | 6 |
|
| 5 | be necessary understand [adj] statements | 6 |
|
| 6 | be necessary [verb] [det] statements | 6 |
|
| 7 | be necessary [to-vb] [adj] statements | 6 |
|
| 8 | is necessary [verb] [adj] statements | 5 |
|
