English verb conjugation
OUGHT TO MASH

Regular verb: mash - mashed - mashed

Affirmation

Simple form	V-ing form
I ought to mash you ought to mash he ought to mash we ought to mash you ought to mash they ought to mash	I ought to be mashing you ought to be mashing he ought to be mashing we ought to be mashing you ought to be mashing they ought to be mashing
Perfect	V-ing perfect
I ought to have mashed you ought to have mashed he ought to have mashed we ought to have mashed you ought to have mashed they ought to have mashed	I ought to have been mashing you ought to have been mashing he ought to have been mashing we ought to have been mashing you ought to have been mashing they ought to have been mashing

Negation

Simple form	V-ing form
I oughtn't to mash you oughtn't to mash he oughtn't to mash we oughtn't to mash you oughtn't to mash they oughtn't to mash	I oughtn't to be mashing you oughtn't to be mashing he oughtn't to be mashing we oughtn't to be mashing you oughtn't to be mashing they oughtn't to be mashing
Perfect	V-ing perfect
I oughtn't to have mashed you oughtn't to have mashed he oughtn't to have mashed we oughtn't to have mashed you oughtn't to have mashed they oughtn't to have mashed	I oughtn't to have been mashing you oughtn't to have been mashing he oughtn't to have been mashing we oughtn't to have been mashing you oughtn't to have been mashing they oughtn't to have been mashing

Interrogative form

Simple form	V-ing form
ought to I mash? ought to you mash? ought to he mash? ought to we mash? ought to you mash? ought to they mash?	ought to I be mashing? ought to you be mashing? ought to he be mashing? ought to we be mashing? ought to you be mashing? ought to they be mashing?
Perfect	V-ing perfect
ought to I have mashed? ought to you have mashed? ought to he have mashed? ought to we have mashed? ought to you have mashed? ought to they have mashed?	ought to I have been mashing? ought to you have been mashing? ought to he have been mashing? ought to we have been mashing? ought to you have been mashing? ought to they have been mashing?

Interro-negative form

Simple form	V-ing form
oughtn't I to mash? oughtn't you to mash? oughtn't he to mash? oughtn't we to mash? oughtn't you to mash? oughtn't they to mash?	oughtn't I to be mashing? oughtn't you to be mashing? oughtn't he to be mashing? oughtn't we to be mashing? oughtn't you to be mashing? oughtn't they to be mashing?
Perfect	V-ing perfect
oughtn't I to have mashed? oughtn't you to have mashed? oughtn't he to have mashed? oughtn't we to have mashed? oughtn't you to have mashed? oughtn't they to have mashed?	oughtn't I to have been mashing? oughtn't you to have been mashing? oughtn't he to have been mashing? oughtn't we to have been mashing? oughtn't you to have been mashing? oughtn't they to have been mashing?