I can uncork you can uncork he can uncork we can uncork you can uncork they can uncork
V-ing form
I can be uncorking you can be uncorking he can be uncorking we can be uncorking you can be uncorking they can be uncorking
Perfect
I can have uncorked you can have uncorked he can have uncorked we can have uncorked you can have uncorked they can have uncorked
V-ing perfect
I can have been uncorking you can have been uncorking he can have been uncorking we can have been uncorking you can have been uncorking they can have been uncorking
Negation
Simple form
I cannot uncork you cannot uncork he cannot uncork we cannot uncork you cannot uncork they cannot uncork
V-ing form
I cannot be uncorking you cannot be uncorking he cannot be uncorking we cannot be uncorking you cannot be uncorking they cannot be uncorking
Perfect
I cannot have uncorked you cannot have uncorked he cannot have uncorked we cannot have uncorked you cannot have uncorked they cannot have uncorked
V-ing perfect
I cannot have been uncorking you cannot have been uncorking he cannot have been uncorking we cannot have been uncorking you cannot have been uncorking they cannot have been uncorking
Interrogative form
Simple form
can I uncork? can you uncork? can he uncork? can we uncork? can you uncork? can they uncork?
V-ing form
can I be uncorking? can you be uncorking? can he be uncorking? can we be uncorking? can you be uncorking? can they be uncorking?
Perfect
can I have uncorked? can you have uncorked? can he have uncorked? can we have uncorked? can you have uncorked? can they have uncorked?
V-ing perfect
can I have been uncorking? can you have been uncorking? can he have been uncorking? can we have been uncorking? can you have been uncorking? can they have been uncorking?
Interro-negative form
Simple form
can I not uncork? can you not uncork? can he not uncork? can we not uncork? can you not uncork? can they not uncork?
V-ing form
can I not be uncorking? can you not be uncorking? can he not be uncorking? can we not be uncorking? can you not be uncorking? can they not be uncorking?
Perfect
can I not have uncorked? can you not have uncorked? can he not have uncorked? can we not have uncorked? can you not have uncorked? can they not have uncorked?
V-ing perfect
can I not have been uncorking? can you not have been uncorking? can he not have been uncorking? can we not have been uncorking? can you not have been uncorking? can they not have been uncorking?