If you claim, the affixation insurance will be added.

如果贵方要求话，可加保这项加险。

But sometimes, categorisation can take place without affixation, and when this happens, we call this type of categorisation zero-derivation, or conversion.

但有时，词类化可有加词情况下发生，当这种情况发生时，我们称这种类型词类化为零派生或转类。

This type of affixation is also attested in German: ge-sing-e (singing), for example, is derived from sing (to sing) and ge-lieb-t (loved) from lieb (to love).

这种类型词加德语中也得到了证实：例如，ge-sing-e（正唱歌）是从sing（唱歌）衍生出来，ge-lieb-t（被爱）是从lieb（爱）衍生出来。

An inflectional affix is attached only when a word is used in a sentence, as this type of affixation is required by grammar.

屈折词只词用于句子中时加，因为这种词加是由语法要求。