| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] it necessary | 424 |
|
| 2 | think it [adj] | 124 |
|
| 3 | [vb infin] it necessary | 79 |
|
| 4 | think it necessary | 65 |
|
| 5 | think [pron] necessary | 18 |
|
