after impact= AFRK
after the impact= AFRKT
after this impact= A*FRKT
as a result of the impact= SRUFRKT
at the time of the impact= TEFKT
at the time of this impact= T*EFKT
before impact= BFRK
before the impact= BFRKT
before this impact= B*FRKT
point of impact= POIFKT
points of impact= POIFKTS