I can donate you can donate she can donate we can donate you can donate they can donate
V-ing form
I can be donating you can be donating she can be donating we can be donating you can be donating they can be donating
Perfect
I can have donated you can have donated she can have donated we can have donated you can have donated they can have donated
V-ing perfect
I can have been donating you can have been donating she can have been donating we can have been donating you can have been donating they can have been donating
Negation
Simple form
I cannot donate you cannot donate she cannot donate we cannot donate you cannot donate they cannot donate
V-ing form
I cannot be donating you cannot be donating she cannot be donating we cannot be donating you cannot be donating they cannot be donating
Perfect
I cannot have donated you cannot have donated she cannot have donated we cannot have donated you cannot have donated they cannot have donated
V-ing perfect
I cannot have been donating you cannot have been donating she cannot have been donating we cannot have been donating you cannot have been donating they cannot have been donating
Interrogative form
Simple form
can I donate? can you donate? can she donate? can we donate? can you donate? can they donate?
V-ing form
can I be donating? can you be donating? can she be donating? can we be donating? can you be donating? can they be donating?
Perfect
can I have donated? can you have donated? can she have donated? can we have donated? can you have donated? can they have donated?
V-ing perfect
can I have been donating? can you have been donating? can she have been donating? can we have been donating? can you have been donating? can they have been donating?
Interro-negative form
Simple form
can I not donate? can you not donate? can she not donate? can we not donate? can you not donate? can they not donate?
V-ing form
can I not be donating? can you not be donating? can she not be donating? can we not be donating? can you not be donating? can they not be donating?
Perfect
can I not have donated? can you not have donated? can she not have donated? can we not have donated? can you not have donated? can they not have donated?
V-ing perfect
can I not have been donating? can you not have been donating? can she not have been donating? can we not have been donating? can you not have been donating? can they not have been donating?