English verb conjugation
COULD OUTACHIEVE

Regular verb: outachieve - outachieved - outachieved

Affirmation

Simple form	V-ing form
I could outachieve you could outachieve he could outachieve we could outachieve you could outachieve they could outachieve	I could be outachieving you could be outachieving he could be outachieving we could be outachieving you could be outachieving they could be outachieving
Perfect	V-ing perfect
I could have outachieved you could have outachieved he could have outachieved we could have outachieved you could have outachieved they could have outachieved	I could have been outachieving you could have been outachieving he could have been outachieving we could have been outachieving you could have been outachieving they could have been outachieving

Negation

Simple form	V-ing form
I couldn't outachieve you couldn't outachieve he couldn't outachieve we couldn't outachieve you couldn't outachieve they couldn't outachieve	I couldn't be outachieving you couldn't be outachieving he couldn't be outachieving we couldn't be outachieving you couldn't be outachieving they couldn't be outachieving
Perfect	V-ing perfect
I couldn't have outachieved you couldn't have outachieved he couldn't have outachieved we couldn't have outachieved you couldn't have outachieved they couldn't have outachieved	I couldn't have been outachieving you couldn't have been outachieving he couldn't have been outachieving we couldn't have been outachieving you couldn't have been outachieving they couldn't have been outachieving

Interrogative form

Simple form	V-ing form
could I outachieve? could you outachieve? could he outachieve? could we outachieve? could you outachieve? could they outachieve?	could I be outachieving? could you be outachieving? could he be outachieving? could we be outachieving? could you be outachieving? could they be outachieving?
Perfect	V-ing perfect
could I have outachieved? could you have outachieved? could he have outachieved? could we have outachieved? could you have outachieved? could they have outachieved?	could I have been outachieving? could you have been outachieving? could he have been outachieving? could we have been outachieving? could you have been outachieving? could they have been outachieving?

Interro-negative form

Simple form	V-ing form
couldn't I outachieve? couldn't you outachieve? couldn't he outachieve? couldn't we outachieve? couldn't you outachieve? couldn't they outachieve?	couldn't I be outachieving? couldn't you be outachieving? couldn't he be outachieving? couldn't we be outachieving? couldn't you be outachieving? couldn't they be outachieving?
Perfect	V-ing perfect
couldn't I have outachieved? couldn't you have outachieved? couldn't he have outachieved? couldn't we have outachieved? couldn't you have outachieved? couldn't they have outachieved?	couldn't I have been outachieving? couldn't you have been outachieving? couldn't he have been outachieving? couldn't we have been outachieving? couldn't you have been outachieving? couldn't they have been outachieving?