| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] to be [adj] | 5461 |
|
| 2 | [vb pp] to be [adj] | 4670 |
|
| 3 | [verb] to be essential | 31 |
|
| 4 | [vb pp] to [be] essential | 13 |
|
| 5 | [vb pp] [prep] be essential | 13 |
|
| 6 | [vb pp] to be essential | 13 |
|
| 7 | [vb pp] to be essential | 13 |
|
| 8 | [vb pp] [prep] be essential | 13 |
|
| 9 | [vb pp] to [be] essential | 13 |
|
| 10 | [vb pp] to be essential | 13 |
|
