| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [conj] is [adj] | 197 |
|
| 2 | [adv] [conj] is [adj] | 175 |
|
| 3 | [adv] [conj] be necessary | 41 |
|
| 4 | [adv] [conj] [be] necessary | 41 |
|
| 5 | [adv] [conj] [is] necessary | 22 |
|
| 6 | [adv] [conj] is necessary | 22 |
|
