| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | and are [adj] | 1388 |
|
| 2 | and are [adj] | 1275 |
|
| 3 | and be essential | 29 |
|
| 4 | and [be] essential | 29 |
|
| 5 | [conj] are essential | 24 |
|
| 6 | and [am/are] essential | 12 |
|
| 7 | and are essential | 12 |
|
