There are two main classes of verbs in English: strong and weak ... There is one verb that is irregular and weak in the past tense, but strong in the the non-progressive participle: do, did, done. A ...
As you can see from the beginning of this alphabetical list, many common verbs in English are irregular and I am afraid it is a matter of learning what is correct in each case as there is no clear ...
Japanese dictionaries list verbs in this form ... So, in IKIMASU (to go), you change KI to KU, and get IKU. There are two irregular verbs that don’t fit the above patterns.