English verb conjugation
COULD DASH

Regular verb: dash - dashed - dashed

Affirmation

Simple form	V-ing form
I could dash you could dash he could dash we could dash you could dash they could dash	I could be dashing you could be dashing he could be dashing we could be dashing you could be dashing they could be dashing
Perfect	V-ing perfect
I could have dashed you could have dashed he could have dashed we could have dashed you could have dashed they could have dashed	I could have been dashing you could have been dashing he could have been dashing we could have been dashing you could have been dashing they could have been dashing

Negation

Simple form	V-ing form
I couldn't dash you couldn't dash he couldn't dash we couldn't dash you couldn't dash they couldn't dash	I couldn't be dashing you couldn't be dashing he couldn't be dashing we couldn't be dashing you couldn't be dashing they couldn't be dashing
Perfect	V-ing perfect
I couldn't have dashed you couldn't have dashed he couldn't have dashed we couldn't have dashed you couldn't have dashed they couldn't have dashed	I couldn't have been dashing you couldn't have been dashing he couldn't have been dashing we couldn't have been dashing you couldn't have been dashing they couldn't have been dashing

Interrogative form

Simple form	V-ing form
could I dash? could you dash? could he dash? could we dash? could you dash? could they dash?	could I be dashing? could you be dashing? could he be dashing? could we be dashing? could you be dashing? could they be dashing?
Perfect	V-ing perfect
could I have dashed? could you have dashed? could he have dashed? could we have dashed? could you have dashed? could they have dashed?	could I have been dashing? could you have been dashing? could he have been dashing? could we have been dashing? could you have been dashing? could they have been dashing?

Interro-negative form

Simple form	V-ing form
couldn't I dash? couldn't you dash? couldn't he dash? couldn't we dash? couldn't you dash? couldn't they dash?	couldn't I be dashing? couldn't you be dashing? couldn't he be dashing? couldn't we be dashing? couldn't you be dashing? couldn't they be dashing?
Perfect	V-ing perfect
couldn't I have dashed? couldn't you have dashed? couldn't he have dashed? couldn't we have dashed? couldn't you have dashed? couldn't they have dashed?	couldn't I have been dashing? couldn't you have been dashing? couldn't he have been dashing? couldn't we have been dashing? couldn't you have been dashing? couldn't they have been dashing?