I can elucidate you can elucidate he can elucidate we can elucidate you can elucidate they can elucidate
V-ing form
I can be elucidating you can be elucidating he can be elucidating we can be elucidating you can be elucidating they can be elucidating
Perfect
I can have elucidated you can have elucidated he can have elucidated we can have elucidated you can have elucidated they can have elucidated
V-ing perfect
I can have been elucidating you can have been elucidating he can have been elucidating we can have been elucidating you can have been elucidating they can have been elucidating
Negation
Simple form
I cannot elucidate you cannot elucidate he cannot elucidate we cannot elucidate you cannot elucidate they cannot elucidate
V-ing form
I cannot be elucidating you cannot be elucidating he cannot be elucidating we cannot be elucidating you cannot be elucidating they cannot be elucidating
Perfect
I cannot have elucidated you cannot have elucidated he cannot have elucidated we cannot have elucidated you cannot have elucidated they cannot have elucidated
V-ing perfect
I cannot have been elucidating you cannot have been elucidating he cannot have been elucidating we cannot have been elucidating you cannot have been elucidating they cannot have been elucidating
Interrogative form
Simple form
can I elucidate? can you elucidate? can he elucidate? can we elucidate? can you elucidate? can they elucidate?
V-ing form
can I be elucidating? can you be elucidating? can he be elucidating? can we be elucidating? can you be elucidating? can they be elucidating?
Perfect
can I have elucidated? can you have elucidated? can he have elucidated? can we have elucidated? can you have elucidated? can they have elucidated?
V-ing perfect
can I have been elucidating? can you have been elucidating? can he have been elucidating? can we have been elucidating? can you have been elucidating? can they have been elucidating?
Interro-negative form
Simple form
can I not elucidate? can you not elucidate? can he not elucidate? can we not elucidate? can you not elucidate? can they not elucidate?
V-ing form
can I not be elucidating? can you not be elucidating? can he not be elucidating? can we not be elucidating? can you not be elucidating? can they not be elucidating?
Perfect
can I not have elucidated? can you not have elucidated? can he not have elucidated? can we not have elucidated? can you not have elucidated? can they not have elucidated?
V-ing perfect
can I not have been elucidating? can you not have been elucidating? can he not have been elucidating? can we not have been elucidating? can you not have been elucidating? can they not have been elucidating?