| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | essential [prep] [adj] | 191 |
|
| 2 | essential [prep] [adj] | 191 |
|
| 3 | essential for [adj] | 111 |
|
| 4 | essential for [adj] | 111 |
|
| 5 | essential to [adj] | 58 |
|
| 6 | essential to [adj] | 58 |
|
| 7 | essential in [adj] | 13 |
|
| 8 | essential in [adj] | 13 |
|
| 9 | essential [prep] effective | 12 |
|
| 10 | essential [prep] good | 12 |
|
| 11 | essential [prep] normal | 7 |
|
| 12 | essential [prep] healthy | 6 |
|
| 13 | essential [prep] successful | 6 |
|
