English verb conjugation
COULD SWASH

Regular verb: swash - swashed - swashed

Affirmation

Simple form	V-ing form
I could swash you could swash he could swash we could swash you could swash they could swash	I could be swashing you could be swashing he could be swashing we could be swashing you could be swashing they could be swashing
Perfect	V-ing perfect
I could have swashed you could have swashed he could have swashed we could have swashed you could have swashed they could have swashed	I could have been swashing you could have been swashing he could have been swashing we could have been swashing you could have been swashing they could have been swashing

Negation

Simple form	V-ing form
I could not swash you could not swash he could not swash we could not swash you could not swash they could not swash	I could not be swashing you could not be swashing he could not be swashing we could not be swashing you could not be swashing they could not be swashing
Perfect	V-ing perfect
I could not have swashed you could not have swashed he could not have swashed we could not have swashed you could not have swashed they could not have swashed	I could not have been swashing you could not have been swashing he could not have been swashing we could not have been swashing you could not have been swashing they could not have been swashing

Interrogative form

Simple form	V-ing form
could I swash? could you swash? could he swash? could we swash? could you swash? could they swash?	could I be swashing? could you be swashing? could he be swashing? could we be swashing? could you be swashing? could they be swashing?
Perfect	V-ing perfect
could I have swashed? could you have swashed? could he have swashed? could we have swashed? could you have swashed? could they have swashed?	could I have been swashing? could you have been swashing? could he have been swashing? could we have been swashing? could you have been swashing? could they have been swashing?

Interro-negative form

Simple form	V-ing form
could I not swash? could you not swash? could he not swash? could we not swash? could you not swash? could they not swash?	could I not be swashing? could you not be swashing? could he not be swashing? could we not be swashing? could you not be swashing? could they not be swashing?
Perfect	V-ing perfect
could I not have swashed? could you not have swashed? could he not have swashed? could we not have swashed? could you not have swashed? could they not have swashed?	could I not have been swashing? could you not have been swashing? could he not have been swashing? could we not have been swashing? could you not have been swashing? could they not have been swashing?