English verb conjugation
MUST SKYLARK

Regular verb: skylark - skylarked - skylarked

Affirmation

Simple form	V-ing form
I must skylark you must skylark she must skylark we must skylark you must skylark they must skylark	I must be skylarking you must be skylarking she must be skylarking we must be skylarking you must be skylarking they must be skylarking
Perfect	V-ing perfect
I must have skylarked you must have skylarked she must have skylarked we must have skylarked you must have skylarked they must have skylarked	I must have been skylarking you must have been skylarking she must have been skylarking we must have been skylarking you must have been skylarking they must have been skylarking

Negation

Simple form	V-ing form
I mustn't skylark you mustn't skylark she mustn't skylark we mustn't skylark you mustn't skylark they mustn't skylark	I mustn't be skylarking you mustn't be skylarking she mustn't be skylarking we mustn't be skylarking you mustn't be skylarking they mustn't be skylarking
Perfect	V-ing perfect
I mustn't have skylarked you mustn't have skylarked she mustn't have skylarked we mustn't have skylarked you mustn't have skylarked they mustn't have skylarked	I mustn't have been skylarking you mustn't have been skylarking she mustn't have been skylarking we mustn't have been skylarking you mustn't have been skylarking they mustn't have been skylarking

Interrogative form

Simple form	V-ing form
must I skylark? must you skylark? must she skylark? must we skylark? must you skylark? must they skylark?	must I be skylarking? must you be skylarking? must she be skylarking? must we be skylarking? must you be skylarking? must they be skylarking?
Perfect	V-ing perfect
must I have skylarked? must you have skylarked? must she have skylarked? must we have skylarked? must you have skylarked? must they have skylarked?	must I have been skylarking? must you have been skylarking? must she have been skylarking? must we have been skylarking? must you have been skylarking? must they have been skylarking?

Interro-negative form

Simple form	V-ing form
mustn't I skylark? mustn't you skylark? mustn't she skylark? mustn't we skylark? mustn't you skylark? mustn't they skylark?	mustn't I be skylarking? mustn't you be skylarking? mustn't she be skylarking? mustn't we be skylarking? mustn't you be skylarking? mustn't they be skylarking?
Perfect	V-ing perfect
mustn't I have skylarked? mustn't you have skylarked? mustn't she have skylarked? mustn't we have skylarked? mustn't you have skylarked? mustn't they have skylarked?	mustn't I have been skylarking? mustn't you have been skylarking? mustn't she have been skylarking? mustn't we have been skylarking? mustn't you have been skylarking? mustn't they have been skylarking?