These days I was learning German grammar of transforming adjective. I learnt so many rules like, when the non which you describe is a accusative, if it’s male word append en, if it’s female or plural append e, if it’s neutral append es. But when the article is meine or keine and the word is plural, append en For nominative and dative phrase …..

Okay… My mood turns into (´Д｀；)/ヽｧ・・・

So I made a small program in Python to help me ‘remember’ which transformation of adjective to use (ノД`)ハァ.

def adj_transformation(adj, article, sex, case, plural):
    if case == 'accusative':
        if sex == 'male':
            adj += 'en'			
        elif sex == 'female' or plural:
            adj += 'e'
    	elif sex == 'neutral':
    	    adj += 'es'
    	elif (article == 'meine' or 'keine') and plural:
    	    adj += 'en'
    elif case == 'nominative':
     	if sex == 'male':
            adj += 'er'
    	else:
    	    adj
    elif case == 'dative':
      	adj += 'en'
    return adj

adj = input('input adjective, regular transaformation only: ')
article = input('input article between ein, eine, keine, meine: ')
sex = input('choose sex of the non bwtween male, female, neutral: ')
case = input('choose case between nominative, dative, accusative: ')
plural = input('input 1 for plural, 0 for non-plural:')

target_adj = adj_transformation(adj, article, sex, case, plural)
print('correct transformation for ', adj, ' is ', target_adj)

If I want to know the correct form of alt (old) in the sentence Er is ein (alt) Mann, run this program:

input adjective, regular transaformation only: alt
input article between ein, eine, kine, meine: ein
choose sex of the non bwtween male, female, neutral: male
choose case between nominative, dative, accusative: nominative
input 1 for plural, 0 for non-plural:0
correct transformation for  alt  is  alter

The result will shown in your terminal, correct transformation for alt is alter

Now I have a ‘German mind’ へ(´∀｀へ)ヨイヨイ♪(ノ´∀｀)ノヨイヨイ♪.