verb_post.py

verb_post.py

def verb_post(v):
    irregular_verb = {"write": "wrote", "go": "went", "read": "read"}
    for key, value in irregular_verb.items():
        if key == v:
            return value
    if v[-1] == "c":
        return v + "ked"
    elif v[-1] == "e":
        return v + "d"
    elif v[-1] == "y":
        if ["a", "i", "u", "e", "o"].count(v[-2]) > 0:
            return v + "ed"
        else:
            return v[:-1] + "ied"

# 実行例
print(verb_post("play"))
print(verb_post("like"))
print(verb_post("try"))
print(verb_post("picnic"))
print(verb_post("write"))
print(verb_post("go"))
print(verb_post("read"))