ought to discover
Regular verb: discover - discovered- discovered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to discover
you ought to discover
she ought to discover
we ought to discover
you ought to discover
they ought to discover 	I ought to be discovering
you ought to be discovering
she ought to be discovering
we ought to be discovering
you ought to be discovering
they ought to be discovering	I ought to have discovered
you ought to have discovered
she ought to have discovered
we ought to have discovered
you ought to have discovered
they ought to have discovered	I ought to have been discovering
you ought to have been discovering
she ought to have been discovering
we ought to have been discovering
you ought to have been discovering
they ought to have been discovering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to discover
you ought not to discover
she ought not to discover
we ought not to discover
you ought not to discover
they ought not to discover 	I ought not to discovering
you ought not to discovering
she ought not to discovering
we ought not to discovering
you ought not to discovering
they ought not to discovering	I ought not to have discovered
you ought not to have discovered
she ought not to have discovered
we ought not to have discovered
you ought not to have discovered
they ought not to have discovered	I ought not to have been discovering
you ought not to have been discovering
she ought not to have been discovering
we ought not to have been discovering
you ought not to have been discovering
they ought not to have been discovering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I discover?
ought to you discover?
ought to she discover?
ought to we discover?
ought to you discover?
ought to they discover? 	ought to I be discovering?
ought to you be discovering?
ought to she be discovering?
ought to we be discovering?
ought to you be discovering?
ought to they be discovering? 	ought to I have discovered?
ought to you have discovered?
ought to she have discovered?
ought to we have discovered?
ought to you have discovered?
ought to they have discovered? 	ought to I have been discovering?
ought to you have been discovering?
ought to she have been discovering?
ought to we have been discovering?
ought to you have been discovering?
ought to they have been discovering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to discover?
ought you not to discover?
ought she not to discover?
ought we not to discover?
ought you not to discover?
ought they not to discover? 	ought I not to be discovering?
ought you not to be discovering?
ought she not to be discovering?
ought we not to be discovering?
ought you not to be discovering?
ought they not to be discovering? 	ought I not to have discovered?
ought you not to have discovered?
ought she not to have discovered?
ought we not to have discovered?
ought you not to have discovered?
ought they not to have discovered? 	ought I not to have been discovering?
ought you not to have been discovering?
ought she not to have been discovering?
ought we not to have been discovering?
ought you not to have been discovering?
ought they not to have been discovering?