modify,
alter,
change make less severe or harsh or extreme; "please modify this letter to make it more polite"; "he modified his views on same-gender marriage"
involve make complex or intricate or complicated; "The situation was rather involved"
develop expand in the form of a series; "Develop the function in the following form"
sophisticate make more complex or refined; "a sophisticated design"
complicate -
make more complicated; "There was a new development that complicated the matter"
simplify make simpler or easier or reduce in complexity or extent; "We had to simplify the instructions"; "this move will simplify our lives"
modify,
alter,
change make less severe or harsh or extreme; "please modify this letter to make it more polite"; "he modified his views on same-gender marriage"
complexify make complex; "he unnecessarily complexified every problem"
