| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [not/n't] be underestimated | 69 |
|
| 2 | [modal v] [not/n't] be underestimated | 69 |
|
| 3 | should [not/n't] be underestimated | 52 |
|
| 4 | should [not/n't] be underestimated | 52 |
|
| 5 | can [not/n't] be underestimated | 13 |
|
| 6 | can [not/n't] be underestimated | 13 |
|
| 7 | [not/n't] be underestimated [conj] | 7 |
|
