I can cachinnate you can cachinnate he can cachinnate we can cachinnate you can cachinnate they can cachinnate
V-ing form
I can be cachinnating you can be cachinnating he can be cachinnating we can be cachinnating you can be cachinnating they can be cachinnating
Perfect
I can have cachinnated you can have cachinnated he can have cachinnated we can have cachinnated you can have cachinnated they can have cachinnated
V-ing perfect
I can have been cachinnating you can have been cachinnating he can have been cachinnating we can have been cachinnating you can have been cachinnating they can have been cachinnating
Negation
Simple form
I can't cachinnate you can't cachinnate he can't cachinnate we can't cachinnate you can't cachinnate they can't cachinnate
V-ing form
I can't be cachinnating you can't be cachinnating he can't be cachinnating we can't be cachinnating you can't be cachinnating they can't be cachinnating
Perfect
I can't have cachinnated you can't have cachinnated he can't have cachinnated we can't have cachinnated you can't have cachinnated they can't have cachinnated
V-ing perfect
I can't have been cachinnating you can't have been cachinnating he can't have been cachinnating we can't have been cachinnating you can't have been cachinnating they can't have been cachinnating
Interrogative form
Simple form
can I cachinnate? can you cachinnate? can he cachinnate? can we cachinnate? can you cachinnate? can they cachinnate?
V-ing form
can I be cachinnating? can you be cachinnating? can he be cachinnating? can we be cachinnating? can you be cachinnating? can they be cachinnating?
Perfect
can I have cachinnated? can you have cachinnated? can he have cachinnated? can we have cachinnated? can you have cachinnated? can they have cachinnated?
V-ing perfect
can I have been cachinnating? can you have been cachinnating? can he have been cachinnating? can we have been cachinnating? can you have been cachinnating? can they have been cachinnating?
Interro-negative form
Simple form
can't I cachinnate? can't you cachinnate? can't he cachinnate? can't we cachinnate? can't you cachinnate? can't they cachinnate?
V-ing form
can't I be cachinnating? can't you be cachinnating? can't he be cachinnating? can't we be cachinnating? can't you be cachinnating? can't they be cachinnating?
Perfect
can't I have cachinnated? can't you have cachinnated? can't he have cachinnated? can't we have cachinnated? can't you have cachinnated? can't they have cachinnated?
V-ing perfect
can't I have been cachinnating? can't you have been cachinnating? can't he have been cachinnating? can't we have been cachinnating? can't you have been cachinnating? can't they have been cachinnating?