| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | an essential [noun] [prep] | 808 |
|
| 2 | an essential [noun] [prep] | 808 |
|
| 3 | an essential [noun sg] [prep] | 802 |
|
| 4 | an essential [noun] of | 505 |
|
| 5 | an essential [noun] of | 505 |
|
| 6 | an essential part [prep] | 291 |
|
| 7 | an essential part [prep] | 291 |
|
| 8 | an essential [noun] in | 134 |
|
| 9 | an essential [noun] in | 134 |
|
| 10 | an essential [noun] for | 85 |
|
| 11 | an essential [noun] for | 85 |
|
| 12 | an essential element [prep] | 58 |
|
| 13 | an essential element [prep] | 58 |
|
| 14 | an essential [noun] to | 48 |
|
| 15 | an essential [noun] to | 48 |
|
| 16 | an essential ingredient [prep] | 44 |
|
| 17 | an essential ingredient [prep] | 44 |
|
| 18 | an essential component [prep] | 38 |
|
| 19 | an essential feature [prep] | 38 |
|
| 20 | an essential feature [prep] | 38 |
|
| 21 | an essential component [prep] | 38 |
|
| 22 | an essential prerequisite [prep] | 28 |
|
| 23 | an essential prerequisite [prep] | 28 |
|
| 24 | an essential aspect [prep] | 18 |
|
| 25 | an essential aspect [prep] | 18 |
|
| 26 | an essential role [prep] | 17 |
|
| 27 | an essential role [prep] | 17 |
|
| 28 | an essential tool [prep] | 16 |
|
| 29 | an essential tool [prep] | 16 |
|
| 30 | an essential [noun] between | 12 |
|
