| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [adj] for | 5065 |
|
| 2 | [be] necessary for | 754 |
|
| 3 | [was/were] necessary [prep] | 249 |
|
| 4 | [was/were] necessary [prep] | 249 |
|
| 5 | [was/were] necessary for | 147 |
|
