| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what is [adv] need be | 12 |
|
| 2 | [Wh det] is [adv] need be | 12 |
|
| 3 | what is [adv] need be | 12 |
|
| 4 | [pron] is [adv] need be | 12 |
|
| 5 | is [adv] need be [art] | 5 |
|
| 6 | is [adv] need be [art] | 5 |
|
