ADJ

correct
logical, reasonable, valid
inescapable, inevitable, obvious
erroneous, false, wrong
main
hasty

VERB + CONCLUSION

arrive at, come to, draw, reach
I can't draw any conclusions from what she said
jump to, leap to
We don't want to jump to the wrong conclusion. Don't go jumping to conclusions before you know the facts
lead to, point to
It all points to the conclusion that nobody knew what was going on

ADJ

satisfactory, successful
foregone
The result of the match was a foregone conclusion
hasty

VERB + CONCLUSION

bring about, bring sth to
The meeting was brought to a hasty conclusion
come to

PREP

in ~
In conclusion, I would like to thank you all for your hard work