General

The past tense of concession is concessioned. See all forms of concession with easy examples.

The past tense of concertize is concertized. See all forms of concertize with easy examples.

The past tense of concertina is concertinaed. See all forms of concertina with easy examples.

The past tense of concert is concerted. See all forms of concert with easy examples.

The past tense of concern is concerned. See all forms of concern with easy examples.

The past tense of conceptualize is conceptualized. See all forms of conceptualize with easy examples.

The past tense of conceptualise is conceptualised. See all forms of conceptualise with easy examples.

The past tense of concentre is concentred. See all forms of concentre with easy examples.

The past tense of concentrate is concentrated. See all forms of concentrate with easy examples.

The past tense of concenter is concentered. See all forms of concenter with easy examples.