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 cannot cachinnate you cannot cachinnate he cannot cachinnate we cannot cachinnate you cannot cachinnate they cannot cachinnate
V-ing form
I cannot be cachinnating you cannot be cachinnating he cannot be cachinnating we cannot be cachinnating you cannot be cachinnating they cannot be cachinnating
Perfect
I cannot have cachinnated you cannot have cachinnated he cannot have cachinnated we cannot have cachinnated you cannot have cachinnated they cannot have cachinnated
V-ing perfect
I cannot have been cachinnating you cannot have been cachinnating he cannot have been cachinnating we cannot have been cachinnating you cannot have been cachinnating they cannot 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 I not cachinnate? can you not cachinnate? can he not cachinnate? can we not cachinnate? can you not cachinnate? can they not cachinnate?
V-ing form
can I not be cachinnating? can you not be cachinnating? can he not be cachinnating? can we not be cachinnating? can you not be cachinnating? can they not be cachinnating?
Perfect
can I not have cachinnated? can you not have cachinnated? can he not have cachinnated? can we not have cachinnated? can you not have cachinnated? can they not have cachinnated?
V-ing perfect
can I not have been cachinnating? can you not have been cachinnating? can he not have been cachinnating? can we not have been cachinnating? can you not have been cachinnating? can they not have been cachinnating?