shall overwinter
Regular verb: overwinter - overwintered- overwintered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'll overwinter
you'll overwinter
she'll overwinter
we'll overwinter
you'll overwinter
they'll overwinter 	I'll be overwintering
you'll be overwintering
she'll be overwintering
we'll be overwintering
you'll be overwintering
they'll be overwintering	I'll have overwintered
you'll have overwintered
she'll have overwintered
we'll have overwintered
you'll have overwintered
they'll have overwintered	I'll have been overwintering
you'll have been overwintering
she'll have been overwintering
we'll have been overwintering
you'll have been overwintering
they'll have been overwintering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shan't overwinter
you shan't overwinter
she shan't overwinter
we shan't overwinter
you shan't overwinter
they shan't overwinter 	I shan't be overwintering
you shan't be overwintering
she shan't be overwintering
we shan't be overwintering
you shan't be overwintering
they shan't be overwintering	I shan't have overwintered
you shan't have overwintered
she shan't have overwintered
we shan't have overwintered
you shan't have overwintered
they shan't have overwintered	I shan't have been overwintering
you shan't have been overwintering
she shan't have been overwintering
we shan't have been overwintering
you shan't have been overwintering
they shan't have been overwintering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I overwinter?
shall you overwinter?
shall she overwinter?
shall we overwinter?
shall you overwinter?
shall they overwinter? 	shall I be overwintering?
shall you be overwintering?
shall she be overwintering?
shall we be overwintering?
shall you be overwintering?
shall they be overwintering? 	shall I have overwintered?
shall you have overwintered?
shall she have overwintered?
shall we have overwintered?
shall you have overwintered?
shall they have overwintered? 	shall I have been overwintering?
shall you have been overwintering?
shall she have been overwintering?
shall we have been overwintering?
shall you have been overwintering?
shall they have been overwintering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shan't I overwinter?
shan't you overwinter?
shan't she overwinter?
shan't we overwinter?
shan't you overwinter?
shan't they overwinter? 	shan't I be overwintering?
shan't you be overwintering?
shan't she be overwintering?
shan't we be overwintering?
shan't you be overwintering?
shan't they be overwintering? 	shan't I have overwintered?
shan't you have overwintered?
shan't she have overwintered?
shan't we have overwintered?
shan't you have overwintered?
shan't they have overwintered? 	shan't I have been overwintering?
shan't you have been overwintering?
shan't she have been overwintering?
shan't we have been overwintering?
shan't you have been overwintering?
shan't they have been overwintering?