| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [verb] to be essential | 13 |
|
| 2 | be [verb] to be essential | 13 |
|
| 3 | [noun] [verb] to be essential | 8 |
|
| 4 | [verb] to be [art] essential | 21 |
|
| 5 | [verb] to be [art] essential | 21 |
|
| 6 | [verb] to be an essential | 13 |
|
| 7 | [verb] to be a essential | 13 |
|
| 8 | [verb] to be the essential | 8 |
|
| 9 | [verb] to be the essential | 8 |
|
| 10 | [verb] to be [adv] essential | 7 |
|
| 11 | [verb] to be [adv] essential | 7 |
|
| 12 | [verb] to be essential [prep] | 15 |
|
| 13 | [verb] to be essential [prep] | 15 |
|
| 14 | [verb] to be essential for | 9 |
|
| 15 | [verb] to be essential for | 9 |
|
| 16 | [verb] to be essential to | 6 |
|
| 17 | [verb] to be essential to | 6 |
|
