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 can't quash you can't quash he can't quash we can't quash you can't quash they can't quash	I can't be quashing you can't be quashing he can't be quashing we can't be quashing you can't be quashing they can't be quashing
Perfect	V-ing perfect
I can't have quashed you can't have quashed he can't have quashed we can't have quashed you can't have quashed they can't have quashed	I can't have been quashing you can't have been quashing he can't have been quashing we can't have been quashing you can't have been quashing they can't 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't I quash? can't you quash? can't he quash? can't we quash? can't you quash? can't they quash?	can't I be quashing? can't you be quashing? can't he be quashing? can't we be quashing? can't you be quashing? can't they be quashing?
Perfect	V-ing perfect
can't I have quashed? can't you have quashed? can't he have quashed? can't we have quashed? can't you have quashed? can't they have quashed?	can't I have been quashing? can't you have been quashing? can't he have been quashing? can't we have been quashing? can't you have been quashing? can't they have been quashing?