| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] be for [adj] [noun pl] | 56 |
|
| 2 | [pron] be essential for [adj] | 16 |
|
| 3 | be essential for [adj] [noun pl] | 13 |
|
| 4 | [pron] be essential for [noun pl] | 9 |
|
