| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] necessary understand such [noun pl] | 6 |
|
| 2 | [be] necessary understand [adj] [noun pl] | 6 |
|
| 3 | [be] necessary understand [det] [noun pl] | 6 |
|
| 4 | [be] necessary to understand [adj] [noun pl] | 6 |
|
| 5 | [be] necessary understand [adj] statements | 6 |
|
| 6 | [be] necessary understand such [noun pl] | 6 |
|
| 7 | be necessary understand [adj] [noun pl] | 6 |
|
| 8 | [is] necessary understand [adj] [noun pl] | 5 |
|
| 9 | is necessary understand [adj] [noun pl] | 5 |
|
