ought to withstand
Irregular verb: withstand - withstood- withstood

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to withstand
you ought to withstand
she ought to withstand
we ought to withstand
you ought to withstand
they ought to withstand 	I ought to be withstanding
you ought to be withstanding
she ought to be withstanding
we ought to be withstanding
you ought to be withstanding
they ought to be withstanding	I ought to have withstood
you ought to have withstood
she ought to have withstood
we ought to have withstood
you ought to have withstood
they ought to have withstood	I ought to have been withstanding
you ought to have been withstanding
she ought to have been withstanding
we ought to have been withstanding
you ought to have been withstanding
they ought to have been withstanding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to withstand
you ought not to withstand
she ought not to withstand
we ought not to withstand
you ought not to withstand
they ought not to withstand 	I ought not to withstanding
you ought not to withstanding
she ought not to withstanding
we ought not to withstanding
you ought not to withstanding
they ought not to withstanding	I ought not to have withstood
you ought not to have withstood
she ought not to have withstood
we ought not to have withstood
you ought not to have withstood
they ought not to have withstood	I ought not to have been withstanding
you ought not to have been withstanding
she ought not to have been withstanding
we ought not to have been withstanding
you ought not to have been withstanding
they ought not to have been withstanding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I withstand?
ought to you withstand?
ought to she withstand?
ought to we withstand?
ought to you withstand?
ought to they withstand? 	ought to I be withstanding?
ought to you be withstanding?
ought to she be withstanding?
ought to we be withstanding?
ought to you be withstanding?
ought to they be withstanding? 	ought to I have withstood?
ought to you have withstood?
ought to she have withstood?
ought to we have withstood?
ought to you have withstood?
ought to they have withstood? 	ought to I have been withstanding?
ought to you have been withstanding?
ought to she have been withstanding?
ought to we have been withstanding?
ought to you have been withstanding?
ought to they have been withstanding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to withstand?
ought you not to withstand?
ought she not to withstand?
ought we not to withstand?
ought you not to withstand?
ought they not to withstand? 	ought I not to be withstanding?
ought you not to be withstanding?
ought she not to be withstanding?
ought we not to be withstanding?
ought you not to be withstanding?
ought they not to be withstanding? 	ought I not to have withstood?
ought you not to have withstood?
ought she not to have withstood?
ought we not to have withstood?
ought you not to have withstood?
ought they not to have withstood? 	ought I not to have been withstanding?
ought you not to have been withstanding?
ought she not to have been withstanding?
ought we not to have been withstanding?
ought you not to have been withstanding?
ought they not to have been withstanding?