... Modality functions and their roles By employing logical expression as the representation of the meaning structure, we can define modality functions as operations on logical expressions in ... ~tesrutokoro, 11dut-:ttive verb~ go on, "keep (onJ *- -ing'. continue, remain, teik u. ~ t~utsuaru I ver.h + on and on, over and over, (repetition of verb) Iterative -teiru, ~teoru, ... modifier and the modificant by utilizing semantic relation frames. There are four types of the semantic relations, namely, case relation, noun concept relation, embeding relation and conjunctive...