must nest
Regular verb: nest - nested- nested

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must nest
you must nest
she must nest
we must nest
you must nest
they must nest 	I must be nesting
you must be nesting
she must be nesting
we must be nesting
you must be nesting
they must be nesting	I must have nested
you must have nested
she must have nested
we must have nested
you must have nested
they must have nested	I must have been nesting
you must have been nesting
she must have been nesting
we must have been nesting
you must have been nesting
they must have been nesting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not nest
you must not nest
she must not nest
we must not nest
you must not nest
they must not nest 	I must not be nesting
you must not be nesting
she must not be nesting
we must not be nesting
you must not be nesting
they must not be nesting	I must not have nested
you must not have nested
she must not have nested
we must not have nested
you must not have nested
they must not have nested	I must not have been nesting
you must not have been nesting
she must not have been nesting
we must not have been nesting
you must not have been nesting
they must not have been nesting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I nest?
must you nest?
must she nest?
must we nest?
must you nest?
must they nest? 	must I be nesting?
must you be nesting?
must she be nesting?
must we be nesting?
must you be nesting?
must they be nesting? 	must I have nested?
must you have nested?
must she have nested?
must we have nested?
must you have nested?
must they have nested? 	must I have been nesting?
must you have been nesting?
must she have been nesting?
must we have been nesting?
must you have been nesting?
must they have been nesting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not nest?
must you not nest?
must she not nest?
must we not nest?
must you not nest?
must they not nest? 	must I not be nesting?
must you not be nesting?
must she not be nesting?
must we not be nesting?
must you not be nesting?
must they not be nesting? 	must I not have nested?
must you not have nested?
must she not have nested?
must we not have nested?
must you not have nested?
must they not have nested? 	must I not have been nesting?
must you not have been nesting?
must she not have been nesting?
must we not have been nesting?
must you not have been nesting?
must they not have been nesting?