I must defragment you must defragment she must defragment we must defragment you must defragment they must defragment
V-ing form
I must be defragmenting you must be defragmenting she must be defragmenting we must be defragmenting you must be defragmenting they must be defragmenting
Perfect
I must have defragmented you must have defragmented she must have defragmented we must have defragmented you must have defragmented they must have defragmented
V-ing perfect
I must have been defragmenting you must have been defragmenting she must have been defragmenting we must have been defragmenting you must have been defragmenting they must have been defragmenting
Negation
Simple form
I must not defragment you must not defragment she must not defragment we must not defragment you must not defragment they must not defragment
V-ing form
I must not be defragmenting you must not be defragmenting she must not be defragmenting we must not be defragmenting you must not be defragmenting they must not be defragmenting
Perfect
I must not have defragmented you must not have defragmented she must not have defragmented we must not have defragmented you must not have defragmented they must not have defragmented
V-ing perfect
I must not have been defragmenting you must not have been defragmenting she must not have been defragmenting we must not have been defragmenting you must not have been defragmenting they must not have been defragmenting
Interrogative form
Simple form
must I defragment? must you defragment? must she defragment? must we defragment? must you defragment? must they defragment?
V-ing form
must I be defragmenting? must you be defragmenting? must she be defragmenting? must we be defragmenting? must you be defragmenting? must they be defragmenting?
Perfect
must I have defragmented? must you have defragmented? must she have defragmented? must we have defragmented? must you have defragmented? must they have defragmented?
V-ing perfect
must I have been defragmenting? must you have been defragmenting? must she have been defragmenting? must we have been defragmenting? must you have been defragmenting? must they have been defragmenting?
Interro-negative form
Simple form
must I not defragment? must you not defragment? must she not defragment? must we not defragment? must you not defragment? must they not defragment?
V-ing form
must I not be defragmenting? must you not be defragmenting? must she not be defragmenting? must we not be defragmenting? must you not be defragmenting? must they not be defragmenting?
Perfect
must I not have defragmented? must you not have defragmented? must she not have defragmented? must we not have defragmented? must you not have defragmented? must they not have defragmented?
V-ing perfect
must I not have been defragmenting? must you not have been defragmenting? must she not have been defragmenting? must we not have been defragmenting? must you not have been defragmenting? must they not have been defragmenting?