| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | thought [prep] [be] necessary | 8 |
|
| 2 | think [prep] [be] necessary | 8 |
|
| 3 | think [prep] be necessary | 8 |
|
| 4 | think to [be] necessary | 8 |
|
| 5 | think to [be] necessary | 8 |
|
