title: Pattern module conjugation: AttributeError: 'int' object has no attribute 'lower'
body: <p>I am trying to write an extended conjugation function using pattern package. For example, when trying to use the following tuple for the conjugation of the verb allege:</p>
  
  <pre><code> tuple = ('allege', 3, 'future', 'plural', 'subjunctive', 'progressive', False)
  </code></pre>
  
  <p>I get the <code>AttributeError: 'int' object has no attribute 'lower'.</code></p>
  
  <p>When I print tuple items, they get printed out nicely, even the integer item of the tuple, however when I try to use them in the conjugate functions, as follows: </p>
  
  <pre><code> conjugate(tuple[0], tuple[1], tuple[2], tuple[3], tuple[4], tuple[5], tuple[6])
  </code></pre>
  
  <p>I get the <code>AttributeError: 'int' object has no attribute 'lower'</code> error and cannot use it in the <code>conjugate()</code> function. </p>
  
  <p>Can somebody help me out with this issue.</p>