事がある [ことがある] /(exp,v5r-i) (1) (after the past tense form of a verb) (See 事がない・ことがない・1) (uk) (for something) to have occurred/to have done (something)/(exp,v5r-i) (2) (See 事がない・ことがない・2) (uk) (for something) to happen on occasion/(P)/EntL1004540/