12. Вспомните значение следующих глаголов и подберите к ним производные. Например: to electrity - electron - electric(al) - electricity - electritication.
lo invent; to discover; to apply; to observe; to design; to conduct; to protect, to produce, to construct, to contribute, to insulate, to tound, to investigate; to create; to resist; to develop; to improve; to transmit; to transtorm, to move, to act, to install, to direct, to require, to operate, to generate.