| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is a [adj] part | 181 |
|
| 2 | is a vital [noun] | 140 |
|
| 3 | is a vital [noun sg] | 138 |
|
| 4 | be a vital part | 79 |
|
| 5 | [be] a vital part | 79 |
|
| 6 | [is] a vital part | 46 |
|
| 7 | is a vital part | 44 |
|
| 8 | is [art] vital part | 44 |
|
| 9 | is a vital part | 44 |
|
| 10 | is [art] vital part | 44 |
|
