| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] thought [prep] [be] [adj] | 87 |
|
| 2 | [was/were] thought [prep] [be] [adj] | 78 |
|
| 3 | [was/were] [verb] [prep] [be] necessary | 17 |
|
| 4 | [was/were] [vb pp] [prep] [be] necessary | 14 |
|
| 5 | [be] thought [prep] [be] necessary | 8 |
|
| 6 | [was/were] think [prep] [be] necessary | 5 |
|
| 7 | [was/were] thought [prep] [be] necessary | 5 |
|
| 8 | [was/were] thought [prep] [be] necessary | 5 |
|
| 9 | [was/were] thought [prep] [be] necessary | 5 |
|
