| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | need [to-vb] [prep] | 2430 |
|
| 2 | need [to-vb] [is] | 227 |
|
| 3 | [to-vb] [is] [prep] | 166 |
|
| 4 | need [is] [prep] | 34 |
|
