| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to [be] [adj] to [pos pn] | 83 |
|
| 2 | to [be] [adj] to [pos pn] | 82 |
|
| 3 | [prep] [be] essential to [pos pn] | 5 |
|
| 4 | [prep] [be] essential to [pos pn] | 5 |
|
| 5 | to [be] essential to [pos pn] | 5 |
|
| 6 | to [be] essential [prep] [pos pn] | 5 |
|
| 7 | to [be] essential to [pron] | 5 |
|
| 8 | to [be] essential to [pos pn] | 5 |
|
