I can interpolate you can interpolate she can interpolate we can interpolate you can interpolate they can interpolate
V-ing form
I can be interpolating you can be interpolating she can be interpolating we can be interpolating you can be interpolating they can be interpolating
Perfect
I can have interpolated you can have interpolated she can have interpolated we can have interpolated you can have interpolated they can have interpolated
V-ing perfect
I can have been interpolating you can have been interpolating she can have been interpolating we can have been interpolating you can have been interpolating they can have been interpolating
Negation
Simple form
I can't interpolate you can't interpolate she can't interpolate we can't interpolate you can't interpolate they can't interpolate
V-ing form
I can't be interpolating you can't be interpolating she can't be interpolating we can't be interpolating you can't be interpolating they can't be interpolating
Perfect
I can't have interpolated you can't have interpolated she can't have interpolated we can't have interpolated you can't have interpolated they can't have interpolated
V-ing perfect
I can't have been interpolating you can't have been interpolating she can't have been interpolating we can't have been interpolating you can't have been interpolating they can't have been interpolating
Interrogative form
Simple form
can I interpolate? can you interpolate? can she interpolate? can we interpolate? can you interpolate? can they interpolate?
V-ing form
can I be interpolating? can you be interpolating? can she be interpolating? can we be interpolating? can you be interpolating? can they be interpolating?
Perfect
can I have interpolated? can you have interpolated? can she have interpolated? can we have interpolated? can you have interpolated? can they have interpolated?
V-ing perfect
can I have been interpolating? can you have been interpolating? can she have been interpolating? can we have been interpolating? can you have been interpolating? can they have been interpolating?
Interro-negative form
Simple form
can't I interpolate? can't you interpolate? can't she interpolate? can't we interpolate? can't you interpolate? can't they interpolate?
V-ing form
can't I be interpolating? can't you be interpolating? can't she be interpolating? can't we be interpolating? can't you be interpolating? can't they be interpolating?
Perfect
can't I have interpolated? can't you have interpolated? can't she have interpolated? can't we have interpolated? can't you have interpolated? can't they have interpolated?
V-ing perfect
can't I have been interpolating? can't you have been interpolating? can't she have been interpolating? can't we have been interpolating? can't you have been interpolating? can't they have been interpolating?