| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] be a | 15803 |
|
| 2 | [vb infin] be a | 2741 |
|
| 3 | need be a | 381 |
|
| 4 | need be [art] | 17 |
|
| 5 | need [be] a | 14 |
|
