I can shake you can shake she can shake we can shake you can shake they can shake
V-ing form
I can be shaking you can be shaking she can be shaking we can be shaking you can be shaking they can be shaking
Perfect
I can have shaken you can have shaken she can have shaken we can have shaken you can have shaken they can have shaken
V-ing perfect
I can have been shaking you can have been shaking she can have been shaking we can have been shaking you can have been shaking they can have been shaking
Negation
Simple form
I can't shake you can't shake she can't shake we can't shake you can't shake they can't shake
V-ing form
I can't be shaking you can't be shaking she can't be shaking we can't be shaking you can't be shaking they can't be shaking
Perfect
I can't have shaken you can't have shaken she can't have shaken we can't have shaken you can't have shaken they can't have shaken
V-ing perfect
I can't have been shaking you can't have been shaking she can't have been shaking we can't have been shaking you can't have been shaking they can't have been shaking
Interrogative form
Simple form
can I shake? can you shake? can she shake? can we shake? can you shake? can they shake?
V-ing form
can I be shaking? can you be shaking? can she be shaking? can we be shaking? can you be shaking? can they be shaking?
Perfect
can I have shaken? can you have shaken? can she have shaken? can we have shaken? can you have shaken? can they have shaken?
V-ing perfect
can I have been shaking? can you have been shaking? can she have been shaking? can we have been shaking? can you have been shaking? can they have been shaking?
Interro-negative form
Simple form
can't I shake? can't you shake? can't she shake? can't we shake? can't you shake? can't they shake?
V-ing form
can't I be shaking? can't you be shaking? can't she be shaking? can't we be shaking? can't you be shaking? can't they be shaking?
Perfect
can't I have shaken? can't you have shaken? can't she have shaken? can't we have shaken? can't you have shaken? can't they have shaken?
V-ing perfect
can't I have been shaking? can't you have been shaking? can't she have been shaking? can't we have been shaking? can't you have been shaking? can't they have been shaking?