| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | needed [to-vb] was | 20 |
|
| 2 | needed do was | 12 |
|
| 3 | needed to do was | 12 |
|
| 4 | needed to know was | 5 |
|
| 5 | needed know was | 5 |
|
