| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] is [adj] for | 2952 |
|
| 2 | [pron] is essential [prep] | 155 |
|
| 3 | [pron] [be] essential for | 142 |
|
| 4 | [pron] be essential for | 142 |
|
| 5 | [pron] [is] essential for | 95 |
|
