English verb conjugation
CAN QUASH

Regular verb: quash - quashed - quashed

Affirmation

Simple form	V-ing form
I can quash you can quash he can quash we can quash you can quash they can quash	I can be quashing you can be quashing he can be quashing we can be quashing you can be quashing they can be quashing
Perfect	V-ing perfect
I can have quashed you can have quashed he can have quashed we can have quashed you can have quashed they can have quashed	I can have been quashing you can have been quashing he can have been quashing we can have been quashing you can have been quashing they can have been quashing

Negation

Simple form	V-ing form
I cannot quash you cannot quash he cannot quash we cannot quash you cannot quash they cannot quash	I cannot be quashing you cannot be quashing he cannot be quashing we cannot be quashing you cannot be quashing they cannot be quashing
Perfect	V-ing perfect
I cannot have quashed you cannot have quashed he cannot have quashed we cannot have quashed you cannot have quashed they cannot have quashed	I cannot have been quashing you cannot have been quashing he cannot have been quashing we cannot have been quashing you cannot have been quashing they cannot have been quashing

Interrogative form

Simple form	V-ing form
can I quash? can you quash? can he quash? can we quash? can you quash? can they quash?	can I be quashing? can you be quashing? can he be quashing? can we be quashing? can you be quashing? can they be quashing?
Perfect	V-ing perfect
can I have quashed? can you have quashed? can he have quashed? can we have quashed? can you have quashed? can they have quashed?	can I have been quashing? can you have been quashing? can he have been quashing? can we have been quashing? can you have been quashing? can they have been quashing?

Interro-negative form

Simple form	V-ing form
can I not quash? can you not quash? can he not quash? can we not quash? can you not quash? can they not quash?	can I not be quashing? can you not be quashing? can he not be quashing? can we not be quashing? can you not be quashing? can they not be quashing?
Perfect	V-ing perfect
can I not have quashed? can you not have quashed? can he not have quashed? can we not have quashed? can you not have quashed? can they not have quashed?	can I not have been quashing? can you not have been quashing? can he not have been quashing? can we not have been quashing? can you not have been quashing? can they not have been quashing?