Take the 2-minute tour ×  I've just written a question and only
after I'd done that did I think about if it's even correct:  I
hope all the scheduled payments will be sent this night, won't
be they?  What confuses me is that all examples or real life
usage were always "active", and this is passive one so won't be
they part looks odd to me.  So, am I correct?  PS: bonus
question: is there a generic name for the phrases like "you do
know that, don't you?"?  share|improve this question There are
lots of questions relating to do support (in fact we have a tag:
do-support) here are some I think will help: Why do we use 'did'
with questions using the simple past tense?¤Why must “not”
frequently be paired with “do”?¤Why is “do” sometimes put before
a verb?. I haven't found a duplicate of your query, so you could
ask it as a question if you're still pondering. –  Matt Эллен
May 30 '12 at 10:57 I changed "I've thought about if it's even
correct" to "did I think about if it's even correct". I could
have changed it to "