| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is essential [that] [det] | 58 |
|
| 2 | is essential that [det] | 58 |
|
| 3 | is essential that [det] | 58 |
|
| 4 | is essential [conj] all | 17 |
|
| 5 | is essential [conj] this | 15 |
|
| 6 | is essential [conj] these | 7 |
|
| 7 | is essential [conj] any | 7 |
|
| 8 | is essential [subord] [det] | 6 |
|
| 9 | is essential [conj] such | 6 |
|
