do I not echo? do you not echo? does he not echo? do we not echo? do you not echo? do they not echo?
Present continuous
am I not echoing? are you not echoing? is he not echoing? are we not echoing? are you not echoing? are they not echoing?
Preterite
did I not echo? did you not echo? did he not echo? did we not echo? did you not echo? did they not echo?
Preterite continuous
was I not echoing? were you not echoing? was he not echoing? were we not echoing? were you not echoing? were they not echoing?
Present perfect
have I not echoed? have you not echoed? has he not echoed? have we not echoed? have you not echoed? have they not echoed?
Present perfect continuous
have I not been echoing? have you not been echoing? has he not been echoing? have we not been echoing? have you not been echoing? have they not been echoing?
Pluperfect
had I not echoed? had you not echoed? had he not echoed? had we not echoed? had you not echoed? had they not echoed?
Pluperfect continuous
had I not been echoing? had you not been echoing? had he not been echoing? had we not been echoing? had you not been echoing? had they not been echoing?
Future
will I not echo? will you not echo? will he not echo? will we not echo? will you not echo? will they not echo?
Future continuous
will I not be echoing? will you not be echoing? will he not be echoing? will we not be echoing? will you not be echoing? will they not be echoing?
Future perfect
will I not have echoed? will you not have echoed? will he not have echoed? will we not have echoed? will you not have echoed? will they not have echoed?
Future perfect continuous
will I not have been echoing? will you not have been echoing? will he not have been echoing? will we not have been echoing? will you not have been echoing? will they not have been echoing?
Conditional
Present
would I not echo? would you not echo? would he not echo? would we not echo? would you not echo? would they not echo?
Present continuous
would I not be echoing? would you not be echoing? would he not be echoing? would we not be echoing? would you not be echoing? would they not be echoing?
Past
would I not have echoed? would you not have echoed? would he not have echoed? would we not have echoed? would you not have echoed? would they not have echoed?
Past continuous
would I not have been echoing? would you not have been echoing? would he not have been echoing? would we not have been echoing? would you not have been echoing? would they not have been echoing?