I can extrapolate you can extrapolate he can extrapolate we can extrapolate you can extrapolate they can extrapolate
V-ing form
I can be extrapolating you can be extrapolating he can be extrapolating we can be extrapolating you can be extrapolating they can be extrapolating
Perfect
I can have extrapolated you can have extrapolated he can have extrapolated we can have extrapolated you can have extrapolated they can have extrapolated
V-ing perfect
I can have been extrapolating you can have been extrapolating he can have been extrapolating we can have been extrapolating you can have been extrapolating they can have been extrapolating
Negation
Simple form
I cannot extrapolate you cannot extrapolate he cannot extrapolate we cannot extrapolate you cannot extrapolate they cannot extrapolate
V-ing form
I cannot be extrapolating you cannot be extrapolating he cannot be extrapolating we cannot be extrapolating you cannot be extrapolating they cannot be extrapolating
Perfect
I cannot have extrapolated you cannot have extrapolated he cannot have extrapolated we cannot have extrapolated you cannot have extrapolated they cannot have extrapolated
V-ing perfect
I cannot have been extrapolating you cannot have been extrapolating he cannot have been extrapolating we cannot have been extrapolating you cannot have been extrapolating they cannot have been extrapolating
Interrogative form
Simple form
can I extrapolate? can you extrapolate? can he extrapolate? can we extrapolate? can you extrapolate? can they extrapolate?
V-ing form
can I be extrapolating? can you be extrapolating? can he be extrapolating? can we be extrapolating? can you be extrapolating? can they be extrapolating?
Perfect
can I have extrapolated? can you have extrapolated? can he have extrapolated? can we have extrapolated? can you have extrapolated? can they have extrapolated?
V-ing perfect
can I have been extrapolating? can you have been extrapolating? can he have been extrapolating? can we have been extrapolating? can you have been extrapolating? can they have been extrapolating?
Interro-negative form
Simple form
can I not extrapolate? can you not extrapolate? can he not extrapolate? can we not extrapolate? can you not extrapolate? can they not extrapolate?
V-ing form
can I not be extrapolating? can you not be extrapolating? can he not be extrapolating? can we not be extrapolating? can you not be extrapolating? can they not be extrapolating?
Perfect
can I not have extrapolated? can you not have extrapolated? can he not have extrapolated? can we not have extrapolated? can you not have extrapolated? can they not have extrapolated?
V-ing perfect
can I not have been extrapolating? can you not have been extrapolating? can he not have been extrapolating? can we not have been extrapolating? can you not have been extrapolating? can they not have been extrapolating?