There are many derivatives formed from verbs and when we have learned how to form these we shall have a greatly increased vocabulary at our disposal. These derivatives are formed either from the present stem or the perfect stem.
To the present stem are added the suffixes
-bil expresses possibility. Verbs in
-da expresses activity in duration; verbs in
-ment expresses the concrete result of an action.
mover, movement. armar, armament. assortir, assortiment.
Note that verbs in
-er with a vowel preceding lose the
The perfect stem is found by what is known as the "Rule of de Wahl". We cut off the
-r of infinitive or
-er from verbs ending in this way. Then :
a) If we are left with a vowel, add
b) If we are left with a
-r change this letter to
c) In all other cases what we have left is the perfect stem. To the perfect stem are added the suffixes
These rules are seen in the following examples :
|administrar||administrat-ion, -iv, -or, -ori|
|currer (to run)||curs-iv|
|instructer||instruct-ion, -iv, -or, -ori|
|crear||creat-ura, -ion, -iv, -or, -ori|
-ion expresses action or the place of the action.
separar, separation. observar, observation. divider, division. prohibir, prohibition. posir (to put, place), position.
-ura denotes the concrete result of the action.
picter, pictura. mixter, mixtura. pleser, plesura. rupter (to break), ruptura. dictar (to dictate), dictatura (dictatorship).
-iv forms adjectives with the meaning "that which is".
decorar, decorativ. adherer, adhesiv. afirmar, afirmativ. prohibir, prohibitiv.
-ie is often added to the present participles of static verbs to form abstract nouns indicating a state.
esser, essentie. consister, consistentie. perseverar, perseverantie.
It will be seen that the suffixes
-ura shade into each other, the latter being the more concrete. English usage will nearly always see you through.
Li audition evenit in li teatre u mult persones esset. Yo opine que li navigation es un arte. Ella condamnat li spíritu competitiv. Noi va competir con vos in li observantie del regules.
See more here: https://occidental-lang.com/derive-from-verb/