| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | were [adj] to | 2414 |
|
| 2 | were [adj] to | 2285 |
|
| 3 | [be] vital to | 209 |
|
| 4 | be vital to | 209 |
|
| 5 | [was/were] vital to | 39 |
|
| 6 | were vital [prep] | 21 |
|
| 7 | were vital to | 12 |
|
