| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they need do be [vb infin] | 8 |
|
| 2 | they need to do be [vb infin] | 8 |
|
| 3 | they need [verb] is [vb infin] | 8 |
|
| 4 | they need [verb] be [vb infin] | 8 |
|
| 5 | they need [to-vb] be [vb infin] | 8 |
|
