| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [adv] be [v-ing] | 320 |
|
| 2 | should [not/n't] be [v-ing] | 226 |
|
| 3 | should [not/n't] [adv] be | 141 |
|
| 4 | [not/n't] [adv] be [v-ing] | 119 |
|
