must bake
Regular verb: bake - baked- baked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must bake
you must bake
she must bake
we must bake
you must bake
they must bake 	I must be baking
you must be baking
she must be baking
we must be baking
you must be baking
they must be baking	I must have baked
you must have baked
she must have baked
we must have baked
you must have baked
they must have baked	I must have been baking
you must have been baking
she must have been baking
we must have been baking
you must have been baking
they must have been baking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not bake
you must not bake
she must not bake
we must not bake
you must not bake
they must not bake 	I must not be baking
you must not be baking
she must not be baking
we must not be baking
you must not be baking
they must not be baking	I must not have baked
you must not have baked
she must not have baked
we must not have baked
you must not have baked
they must not have baked	I must not have been baking
you must not have been baking
she must not have been baking
we must not have been baking
you must not have been baking
they must not have been baking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I bake?
must you bake?
must she bake?
must we bake?
must you bake?
must they bake? 	must I be baking?
must you be baking?
must she be baking?
must we be baking?
must you be baking?
must they be baking? 	must I have baked?
must you have baked?
must she have baked?
must we have baked?
must you have baked?
must they have baked? 	must I have been baking?
must you have been baking?
must she have been baking?
must we have been baking?
must you have been baking?
must they have been baking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not bake?
must you not bake?
must she not bake?
must we not bake?
must you not bake?
must they not bake? 	must I not be baking?
must you not be baking?
must she not be baking?
must we not be baking?
must you not be baking?
must they not be baking? 	must I not have baked?
must you not have baked?
must she not have baked?
must we not have baked?
must you not have baked?
must they not have baked? 	must I not have been baking?
must you not have been baking?
must she not have been baking?
must we not have been baking?
must you not have been baking?
must they not have been baking?