English verb conjugation
CAN ASSUME

Regular verb: assume - assumed - assumed

Affirmation

Simple form	V-ing form
I can assume you can assume he can assume we can assume you can assume they can assume	I can be assuming you can be assuming he can be assuming we can be assuming you can be assuming they can be assuming
Perfect	V-ing perfect
I can have assumed you can have assumed he can have assumed we can have assumed you can have assumed they can have assumed	I can have been assuming you can have been assuming he can have been assuming we can have been assuming you can have been assuming they can have been assuming

Negation

Simple form	V-ing form
I cannot assume you cannot assume he cannot assume we cannot assume you cannot assume they cannot assume	I cannot be assuming you cannot be assuming he cannot be assuming we cannot be assuming you cannot be assuming they cannot be assuming
Perfect	V-ing perfect
I cannot have assumed you cannot have assumed he cannot have assumed we cannot have assumed you cannot have assumed they cannot have assumed	I cannot have been assuming you cannot have been assuming he cannot have been assuming we cannot have been assuming you cannot have been assuming they cannot have been assuming

Interrogative form

Simple form	V-ing form
can I assume? can you assume? can he assume? can we assume? can you assume? can they assume?	can I be assuming? can you be assuming? can he be assuming? can we be assuming? can you be assuming? can they be assuming?
Perfect	V-ing perfect
can I have assumed? can you have assumed? can he have assumed? can we have assumed? can you have assumed? can they have assumed?	can I have been assuming? can you have been assuming? can he have been assuming? can we have been assuming? can you have been assuming? can they have been assuming?

Interro-negative form

Simple form	V-ing form
can I not assume? can you not assume? can he not assume? can we not assume? can you not assume? can they not assume?	can I not be assuming? can you not be assuming? can he not be assuming? can we not be assuming? can you not be assuming? can they not be assuming?
Perfect	V-ing perfect
can I not have assumed? can you not have assumed? can he not have assumed? can we not have assumed? can you not have assumed? can they not have assumed?	can I not have been assuming? can you not have been assuming? can he not have been assuming? can we not have been assuming? can you not have been assuming? can they not have been assuming?