English verb conjugation
SHOULD MASH

Regular verb: mash - mashed - mashed

Affirmation

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

Negation

Simple form	V-ing form
I should not mash you should not mash he should not mash we should not mash you should not mash they should not mash	I should not be mashing you should not be mashing he should not be mashing we should not be mashing you should not be mashing they should not be mashing
Perfect	V-ing perfect
I should not have mashed you should not have mashed he should not have mashed we should not have mashed you should not have mashed they should not have mashed	I should not have been mashing you should not have been mashing he should not have been mashing we should not have been mashing you should not have been mashing they should not have been mashing

Interrogative form

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

Interro-negative form

Simple form	V-ing form
should I not mash? should you not mash? should he not mash? should we not mash? should you not mash? should they not mash?	should I not be mashing? should you not be mashing? should he not be mashing? should we not be mashing? should you not be mashing? should they not be mashing?
Perfect	V-ing perfect
should I not have mashed? should you not have mashed? should he not have mashed? should we not have mashed? should you not have mashed? should they not have mashed?	should I not have been mashing? should you not have been mashing? should he not have been mashing? should we not have been mashing? should you not have been mashing? should they not have been mashing?