I can aggregate you can aggregate she can aggregate we can aggregate you can aggregate they can aggregate
V-ing form
I can be aggregating you can be aggregating she can be aggregating we can be aggregating you can be aggregating they can be aggregating
Perfect
I can have aggregated you can have aggregated she can have aggregated we can have aggregated you can have aggregated they can have aggregated
V-ing perfect
I can have been aggregating you can have been aggregating she can have been aggregating we can have been aggregating you can have been aggregating they can have been aggregating
Negation
Simple form
I can't aggregate you can't aggregate she can't aggregate we can't aggregate you can't aggregate they can't aggregate
V-ing form
I can't be aggregating you can't be aggregating she can't be aggregating we can't be aggregating you can't be aggregating they can't be aggregating
Perfect
I can't have aggregated you can't have aggregated she can't have aggregated we can't have aggregated you can't have aggregated they can't have aggregated
V-ing perfect
I can't have been aggregating you can't have been aggregating she can't have been aggregating we can't have been aggregating you can't have been aggregating they can't have been aggregating
Interrogative form
Simple form
can I aggregate? can you aggregate? can she aggregate? can we aggregate? can you aggregate? can they aggregate?
V-ing form
can I be aggregating? can you be aggregating? can she be aggregating? can we be aggregating? can you be aggregating? can they be aggregating?
Perfect
can I have aggregated? can you have aggregated? can she have aggregated? can we have aggregated? can you have aggregated? can they have aggregated?
V-ing perfect
can I have been aggregating? can you have been aggregating? can she have been aggregating? can we have been aggregating? can you have been aggregating? can they have been aggregating?
Interro-negative form
Simple form
can't I aggregate? can't you aggregate? can't she aggregate? can't we aggregate? can't you aggregate? can't they aggregate?
V-ing form
can't I be aggregating? can't you be aggregating? can't she be aggregating? can't we be aggregating? can't you be aggregating? can't they be aggregating?
Perfect
can't I have aggregated? can't you have aggregated? can't she have aggregated? can't we have aggregated? can't you have aggregated? can't they have aggregated?
V-ing perfect
can't I have been aggregating? can't you have been aggregating? can't she have been aggregating? can't we have been aggregating? can't you have been aggregating? can't they have been aggregating?