| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is essential for [adj] [noun sg] | 53 |
|
| 2 | is essential for [adj] [noun] | 51 |
|
| 3 | is essential for [det] [noun] | 18 |
|
| 4 | is essential for [adj] [noun pl] | 14 |
|
| 5 | is essential for any [noun] | 6 |
|
| 6 | is essential for any [noun] | 6 |
|
| 7 | is essential for effective [noun] | 5 |
|
| 8 | is essential for all [noun] | 5 |
|
| 9 | is essential for all [noun] | 5 |
|
| 10 | is essential for effective [noun] | 5 |
|
