| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [verb] be a | 155 |
|
| 2 | be need be a | 110 |
|
| 3 | [be] need be a | 110 |
|
| 4 | [is] need be a | 71 |
|
| 5 | is need be [art] | 67 |
|
| 6 | is need [be] a | 62 |
|
