
Regular verb: excite - excited - excited
Simple form | V-ing form | 
| I must excite you must excite she must excite we must excite you must excite they must excite  | I must be exciting you must be exciting she must be exciting we must be exciting you must be exciting they must be exciting  | 
Perfect | V-ing perfect | 
| I must have excited you must have excited she must have excited we must have excited you must have excited they must have excited  | I must have been exciting you must have been exciting she must have been exciting we must have been exciting you must have been exciting they must have been exciting  | 
Simple form | V-ing form | 
| I mustn't excite you mustn't excite she mustn't excite we mustn't excite you mustn't excite they mustn't excite  | I mustn't be exciting you mustn't be exciting she mustn't be exciting we mustn't be exciting you mustn't be exciting they mustn't be exciting  | 
Perfect | V-ing perfect | 
| I mustn't have excited you mustn't have excited she mustn't have excited we mustn't have excited you mustn't have excited they mustn't have excited  | I mustn't have been exciting you mustn't have been exciting she mustn't have been exciting we mustn't have been exciting you mustn't have been exciting they mustn't have been exciting  | 
Simple form | V-ing form | 
| must I excite? must you excite? must she excite? must we excite? must you excite? must they excite?  | must I be exciting? must you be exciting? must she be exciting? must we be exciting? must you be exciting? must they be exciting?  | 
Perfect | V-ing perfect | 
| must I have excited? must you have excited? must she have excited? must we have excited? must you have excited? must they have excited?  | must I have been exciting? must you have been exciting? must she have been exciting? must we have been exciting? must you have been exciting? must they have been exciting?  | 
Simple form | V-ing form | 
| mustn't I excite? mustn't you excite? mustn't she excite? mustn't we excite? mustn't you excite? mustn't they excite?  | mustn't I be exciting? mustn't you be exciting? mustn't she be exciting? mustn't we be exciting? mustn't you be exciting? mustn't they be exciting?  | 
Perfect | V-ing perfect | 
| mustn't I have excited? mustn't you have excited? mustn't she have excited? mustn't we have excited? mustn't you have excited? mustn't they have excited?  | mustn't I have been exciting? mustn't you have been exciting? mustn't she have been exciting? mustn't we have been exciting? mustn't you have been exciting? mustn't they have been exciting?  |