ought to dredge
Regular verb: dredge - dredged- dredged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to dredge
you ought to dredge
she ought to dredge
we ought to dredge
you ought to dredge
they ought to dredge 	I ought to be dredging
you ought to be dredging
she ought to be dredging
we ought to be dredging
you ought to be dredging
they ought to be dredging	I ought to have dredged
you ought to have dredged
she ought to have dredged
we ought to have dredged
you ought to have dredged
they ought to have dredged	I ought to have been dredging
you ought to have been dredging
she ought to have been dredging
we ought to have been dredging
you ought to have been dredging
they ought to have been dredging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to dredge
you oughtn't to dredge
she oughtn't to dredge
we oughtn't to dredge
you oughtn't to dredge
they oughtn't to dredge 	I oughtn't to be dredging
you oughtn't to be dredging
she oughtn't to be dredging
we oughtn't to be dredging
you oughtn't to be dredging
they oughtn't to be dredging	I oughtn't to have dredged
you oughtn't to have dredged
she oughtn't to have dredged
we oughtn't to have dredged
you oughtn't to have dredged
they oughtn't to have dredged	I oughtn't to have been dredging
you oughtn't to have been dredging
she oughtn't to have been dredging
we oughtn't to have been dredging
you oughtn't to have been dredging
they oughtn't to have been dredging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I dredge?
ought to you dredge?
ought to she dredge?
ought to we dredge?
ought to you dredge?
ought to they dredge? 	ought to I be dredging?
ought to you be dredging?
ought to she be dredging?
ought to we be dredging?
ought to you be dredging?
ought to they be dredging? 	ought to I have dredged?
ought to you have dredged?
ought to she have dredged?
ought to we have dredged?
ought to you have dredged?
ought to they have dredged? 	ought to I have been dredging?
ought to you have been dredging?
ought to she have been dredging?
ought to we have been dredging?
ought to you have been dredging?
ought to they have been dredging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to dredge?
oughtn't you to dredge?
oughtn't she to dredge?
oughtn't we to dredge?
oughtn't you to dredge?
oughtn't they to dredge? 	oughtn't I to be dredging?
oughtn't you to be dredging?
oughtn't she to be dredging?
oughtn't we to be dredging?
oughtn't you to be dredging?
oughtn't they to be dredging? 	oughtn't I to have dredged?
oughtn't you to have dredged?
oughtn't she to have dredged?
oughtn't we to have dredged?
oughtn't you to have dredged?
oughtn't they to have dredged? 	oughtn't I to have been dredging?
oughtn't you to have been dredging?
oughtn't she to have been dredging?
oughtn't we to have been dredging?
oughtn't you to have been dredging?
oughtn't they to have been dredging?