I could have done without

[Nikola74]

Hi, I was writing this sentence "I thought I could have done without a girlfriend until I knew you".
Is the use of the form "do without" correct in this case?
I want to say that before knowing this person I tought that I could have been by myself.
Is it correct to say "I could have done without" or this form can be used just in the present simple "do without"?
Thank you!

 

[The Newt]

"I thought I could have done without" is fine in other contexts, but in this particular example I would say "I thought I could do without."

 

[Nikola74]

Thank you! the meaning is the same, right?

 

[Nikola74]

is "until I knew you" correct? Or should I say "until I known you"?

 

[The Newt]

"I thought I could do without a girlfriend until I knew you".

 

[Nikola74]

Thank you!
Anyway, is the use of "do without" appropriate in this case?

 

[The Newt]

Thank you!
Anyway, is the use of "do without" appropriate in this case?

Sure, "do without" or "live without."