ought to grubstake
Regular verb: grubstake - grubstaked- grubstaked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to grubstake
you ought to grubstake
he ought to grubstake
we ought to grubstake
you ought to grubstake
they ought to grubstake 	I ought to be grubstaking
you ought to be grubstaking
he ought to be grubstaking
we ought to be grubstaking
you ought to be grubstaking
they ought to be grubstaking	I ought to have grubstaked
you ought to have grubstaked
he ought to have grubstaked
we ought to have grubstaked
you ought to have grubstaked
they ought to have grubstaked	I ought to have been grubstaking
you ought to have been grubstaking
he ought to have been grubstaking
we ought to have been grubstaking
you ought to have been grubstaking
they ought to have been grubstaking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to grubstake
you oughtn't to grubstake
he oughtn't to grubstake
we oughtn't to grubstake
you oughtn't to grubstake
they oughtn't to grubstake 	I oughtn't to be grubstaking
you oughtn't to be grubstaking
he oughtn't to be grubstaking
we oughtn't to be grubstaking
you oughtn't to be grubstaking
they oughtn't to be grubstaking	I oughtn't to have grubstaked
you oughtn't to have grubstaked
he oughtn't to have grubstaked
we oughtn't to have grubstaked
you oughtn't to have grubstaked
they oughtn't to have grubstaked	I oughtn't to have been grubstaking
you oughtn't to have been grubstaking
he oughtn't to have been grubstaking
we oughtn't to have been grubstaking
you oughtn't to have been grubstaking
they oughtn't to have been grubstaking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I grubstake?
ought to you grubstake?
ought to he grubstake?
ought to we grubstake?
ought to you grubstake?
ought to they grubstake? 	ought to I be grubstaking?
ought to you be grubstaking?
ought to he be grubstaking?
ought to we be grubstaking?
ought to you be grubstaking?
ought to they be grubstaking? 	ought to I have grubstaked?
ought to you have grubstaked?
ought to he have grubstaked?
ought to we have grubstaked?
ought to you have grubstaked?
ought to they have grubstaked? 	ought to I have been grubstaking?
ought to you have been grubstaking?
ought to he have been grubstaking?
ought to we have been grubstaking?
ought to you have been grubstaking?
ought to they have been grubstaking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to grubstake?
oughtn't you to grubstake?
oughtn't he to grubstake?
oughtn't we to grubstake?
oughtn't you to grubstake?
oughtn't they to grubstake? 	oughtn't I to be grubstaking?
oughtn't you to be grubstaking?
oughtn't he to be grubstaking?
oughtn't we to be grubstaking?
oughtn't you to be grubstaking?
oughtn't they to be grubstaking? 	oughtn't I to have grubstaked?
oughtn't you to have grubstaked?
oughtn't he to have grubstaked?
oughtn't we to have grubstaked?
oughtn't you to have grubstaked?
oughtn't they to have grubstaked? 	oughtn't I to have been grubstaking?
oughtn't you to have been grubstaking?
oughtn't he to have been grubstaking?
oughtn't we to have been grubstaking?
oughtn't you to have been grubstaking?
oughtn't they to have been grubstaking?