| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should be [verb] | 23361 |
|
| 2 | should be [v-ing] | 1446 |
|
| 3 | should be take | 619 |
|
| 4 | [modal v] be taking | 355 |
|
| 5 | [vb mod] be taking | 355 |
|
| 6 | should [be] taking | 35 |
|
| 7 | should be taking | 35 |
|
