| Answer | % Correct |
|---|---|
| have | 91%
|
| could | 87%
|
| do | 87%
|
| should | 87%
|
| will | 87%
|
| would | 87%
|
| can | 83%
|
| be | 78%
|
| does | 78%
|
| has | 78%
|
| must | 78%
|
| are | 74%
|
| did | 74%
|
| had | 74%
|
| is | 74%
|
| was | 74%
|
| were | 74%
|
| am | 70%
|
| may | 70%
|
| might | 70%
|
| shall | 70%
|
| been | 61%
|
| being | 57%
|