| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | study have [adv] been | 32 |
|
| 2 | study have [adv] be | 32 |
|
| 3 | study have [adv] [been] | 32 |
|
| 4 | studies have [adv] [be] | 25 |
|
| 5 | study have [adv] [be] | 24 |
|
| 6 | study have [adv] [be] | 19 |
|
| 7 | study has [adv] [be] | 9 |
|
| 8 | study have not [be] | 8 |
|
| 9 | study have not [be] | 8 |
|
| 10 | study have [not/n't] [be] | 8 |
|
| 11 | study have [adv] [be] | 7 |
|
| 12 | study have also [be] | 6 |
|
| 13 | study have also [be] | 6 |
|
