I can disappoint you can disappoint she can disappoint we can disappoint you can disappoint they can disappoint
V-ing form
I can be disappointing you can be disappointing she can be disappointing we can be disappointing you can be disappointing they can be disappointing
Perfect
I can have disappointed you can have disappointed she can have disappointed we can have disappointed you can have disappointed they can have disappointed
V-ing perfect
I can have been disappointing you can have been disappointing she can have been disappointing we can have been disappointing you can have been disappointing they can have been disappointing
Negation
Simple form
I cannot disappoint you cannot disappoint she cannot disappoint we cannot disappoint you cannot disappoint they cannot disappoint
V-ing form
I cannot be disappointing you cannot be disappointing she cannot be disappointing we cannot be disappointing you cannot be disappointing they cannot be disappointing
Perfect
I cannot have disappointed you cannot have disappointed she cannot have disappointed we cannot have disappointed you cannot have disappointed they cannot have disappointed
V-ing perfect
I cannot have been disappointing you cannot have been disappointing she cannot have been disappointing we cannot have been disappointing you cannot have been disappointing they cannot have been disappointing
Interrogative form
Simple form
can I disappoint? can you disappoint? can she disappoint? can we disappoint? can you disappoint? can they disappoint?
V-ing form
can I be disappointing? can you be disappointing? can she be disappointing? can we be disappointing? can you be disappointing? can they be disappointing?
Perfect
can I have disappointed? can you have disappointed? can she have disappointed? can we have disappointed? can you have disappointed? can they have disappointed?
V-ing perfect
can I have been disappointing? can you have been disappointing? can she have been disappointing? can we have been disappointing? can you have been disappointing? can they have been disappointing?
Interro-negative form
Simple form
can I not disappoint? can you not disappoint? can she not disappoint? can we not disappoint? can you not disappoint? can they not disappoint?
V-ing form
can I not be disappointing? can you not be disappointing? can she not be disappointing? can we not be disappointing? can you not be disappointing? can they not be disappointing?
Perfect
can I not have disappointed? can you not have disappointed? can she not have disappointed? can we not have disappointed? can you not have disappointed? can they not have disappointed?
V-ing perfect
can I not have been disappointing? can you not have been disappointing? can she not have been disappointing? can we not have been disappointing? can you not have been disappointing? can they not have been disappointing?