| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adj] to | 12163 |
|
| 2 | is [adj] to | 11627 |
|
| 3 | is vital [prep] | 226 |
|
| 4 | [be] vital to | 209 |
|
| 5 | be vital to | 209 |
|
| 6 | [is] vital to | 103 |
|
| 7 | is vital to | 100 |
|
