English verb conjugation
MUST DASH

Regular verb: dash - dashed - dashed

Affirmation

Simple form	V-ing form
I must dash you must dash she must dash we must dash you must dash they must dash	I must be dashing you must be dashing she must be dashing we must be dashing you must be dashing they must be dashing
Perfect	V-ing perfect
I must have dashed you must have dashed she must have dashed we must have dashed you must have dashed they must have dashed	I must have been dashing you must have been dashing she must have been dashing we must have been dashing you must have been dashing they must have been dashing

Negation

Simple form	V-ing form
I mustn't dash you mustn't dash she mustn't dash we mustn't dash you mustn't dash they mustn't dash	I mustn't be dashing you mustn't be dashing she mustn't be dashing we mustn't be dashing you mustn't be dashing they mustn't be dashing
Perfect	V-ing perfect
I mustn't have dashed you mustn't have dashed she mustn't have dashed we mustn't have dashed you mustn't have dashed they mustn't have dashed	I mustn't have been dashing you mustn't have been dashing she mustn't have been dashing we mustn't have been dashing you mustn't have been dashing they mustn't have been dashing

Interrogative form

Simple form	V-ing form
must I dash? must you dash? must she dash? must we dash? must you dash? must they dash?	must I be dashing? must you be dashing? must she be dashing? must we be dashing? must you be dashing? must they be dashing?
Perfect	V-ing perfect
must I have dashed? must you have dashed? must she have dashed? must we have dashed? must you have dashed? must they have dashed?	must I have been dashing? must you have been dashing? must she have been dashing? must we have been dashing? must you have been dashing? must they have been dashing?

Interro-negative form

Simple form	V-ing form
mustn't I dash? mustn't you dash? mustn't she dash? mustn't we dash? mustn't you dash? mustn't they dash?	mustn't I be dashing? mustn't you be dashing? mustn't she be dashing? mustn't we be dashing? mustn't you be dashing? mustn't they be dashing?
Perfect	V-ing perfect
mustn't I have dashed? mustn't you have dashed? mustn't she have dashed? mustn't we have dashed? mustn't you have dashed? mustn't they have dashed?	mustn't I have been dashing? mustn't you have been dashing? mustn't she have been dashing? mustn't we have been dashing? mustn't you have been dashing? mustn't they have been dashing?