Verb suffixes: -en:                      widen, strengthen, lengthen -ate:                     communicate, irritate, complicate -ify:                      intensify, magnify, beautify -is(z)e:                  realise, economise, recognise Adverb suffixes:

-ish:                     Spanish, childish, foolish -ous:                    spontaneous, curious, envious -al:                       regional, universal, ancestral -ful:                      wonderful, helpful, useful -ic:                       scientific, terrific, athletic