I must aquaplane you must aquaplane she must aquaplane we must aquaplane you must aquaplane they must aquaplane
V-ing form
I must be aquaplaning you must be aquaplaning she must be aquaplaning we must be aquaplaning you must be aquaplaning they must be aquaplaning
Perfect
I must have aquaplaned you must have aquaplaned she must have aquaplaned we must have aquaplaned you must have aquaplaned they must have aquaplaned
V-ing perfect
I must have been aquaplaning you must have been aquaplaning she must have been aquaplaning we must have been aquaplaning you must have been aquaplaning they must have been aquaplaning
Negation
Simple form
I mustn't aquaplane you mustn't aquaplane she mustn't aquaplane we mustn't aquaplane you mustn't aquaplane they mustn't aquaplane
V-ing form
I mustn't be aquaplaning you mustn't be aquaplaning she mustn't be aquaplaning we mustn't be aquaplaning you mustn't be aquaplaning they mustn't be aquaplaning
Perfect
I mustn't have aquaplaned you mustn't have aquaplaned she mustn't have aquaplaned we mustn't have aquaplaned you mustn't have aquaplaned they mustn't have aquaplaned
V-ing perfect
I mustn't have been aquaplaning you mustn't have been aquaplaning she mustn't have been aquaplaning we mustn't have been aquaplaning you mustn't have been aquaplaning they mustn't have been aquaplaning
Interrogative form
Simple form
must I aquaplane? must you aquaplane? must she aquaplane? must we aquaplane? must you aquaplane? must they aquaplane?
V-ing form
must I be aquaplaning? must you be aquaplaning? must she be aquaplaning? must we be aquaplaning? must you be aquaplaning? must they be aquaplaning?
Perfect
must I have aquaplaned? must you have aquaplaned? must she have aquaplaned? must we have aquaplaned? must you have aquaplaned? must they have aquaplaned?
V-ing perfect
must I have been aquaplaning? must you have been aquaplaning? must she have been aquaplaning? must we have been aquaplaning? must you have been aquaplaning? must they have been aquaplaning?
Interro-negative form
Simple form
mustn't I aquaplane? mustn't you aquaplane? mustn't she aquaplane? mustn't we aquaplane? mustn't you aquaplane? mustn't they aquaplane?
V-ing form
mustn't I be aquaplaning? mustn't you be aquaplaning? mustn't she be aquaplaning? mustn't we be aquaplaning? mustn't you be aquaplaning? mustn't they be aquaplaning?
Perfect
mustn't I have aquaplaned? mustn't you have aquaplaned? mustn't she have aquaplaned? mustn't we have aquaplaned? mustn't you have aquaplaned? mustn't they have aquaplaned?
V-ing perfect
mustn't I have been aquaplaning? mustn't you have been aquaplaning? mustn't she have been aquaplaning? mustn't we have been aquaplaning? mustn't you have been aquaplaning? mustn't they have been aquaplaning?