I can buddy you can buddy she can buddy we can buddy you can buddy they can buddy
V-ing form
I can be buddying you can be buddying she can be buddying we can be buddying you can be buddying they can be buddying
Perfect
I can have buddied you can have buddied she can have buddied we can have buddied you can have buddied they can have buddied
V-ing perfect
I can have been buddying you can have been buddying she can have been buddying we can have been buddying you can have been buddying they can have been buddying
Negation
Simple form
I can't buddy you can't buddy she can't buddy we can't buddy you can't buddy they can't buddy
V-ing form
I can't be buddying you can't be buddying she can't be buddying we can't be buddying you can't be buddying they can't be buddying
Perfect
I can't have buddied you can't have buddied she can't have buddied we can't have buddied you can't have buddied they can't have buddied
V-ing perfect
I can't have been buddying you can't have been buddying she can't have been buddying we can't have been buddying you can't have been buddying they can't have been buddying
Interrogative form
Simple form
can I buddy? can you buddy? can she buddy? can we buddy? can you buddy? can they buddy?
V-ing form
can I be buddying? can you be buddying? can she be buddying? can we be buddying? can you be buddying? can they be buddying?
Perfect
can I have buddied? can you have buddied? can she have buddied? can we have buddied? can you have buddied? can they have buddied?
V-ing perfect
can I have been buddying? can you have been buddying? can she have been buddying? can we have been buddying? can you have been buddying? can they have been buddying?
Interro-negative form
Simple form
can't I buddy? can't you buddy? can't she buddy? can't we buddy? can't you buddy? can't they buddy?
V-ing form
can't I be buddying? can't you be buddying? can't she be buddying? can't we be buddying? can't you be buddying? can't they be buddying?
Perfect
can't I have buddied? can't you have buddied? can't she have buddied? can't we have buddied? can't you have buddied? can't they have buddied?
V-ing perfect
can't I have been buddying? can't you have been buddying? can't she have been buddying? can't we have been buddying? can't you have been buddying? can't they have been buddying?