CON
DNA
con consign, conduct, confound, contract ect.....
Wry is the answer I found for Expressing Irony.
day
daydaylightdaybreakdaytime
It appears you are looking for CON to make conduct and consign, but contense is not a word. The only three-letter combination you can use in front of TENSE is pretense, which does not work with the other two words. However, if you replace TENSE with DENSE, your question would work.
Out - outturns
day
bra
DNA
con + sign = consign
con
Lead, iron and water
sea
con-sign
con consign, conduct, confound, contract ect.....
Wry is the answer I found for Expressing Irony.