Irregularities and exceptions in Interlingua
The term irregularities or exceptions in Interlingua refers to deviations from the logical rules in a few grammatical constructions in the international auxiliary language Interlingua. These oddities are a part of the standard grammar. These special cases have crept into the language as a result to keep it naturalistic. Most of these irregularities also exist in Interlingua's source languages; English, French, Italian, Spanish, Portuguese, and to a lesser extent German and Russian. This feature of the language makes Interlingua more familiar to the speakers of source languages. And at the same time, it makes the language more difficult for others.
The speakers of the source languages don't perceive all deviations as irregular. For instance, Interlingua has two different words for English is (es) and are (son). While most English speakers will not find any thing abnormal about it, speakers of a few other languages may find the use of two words to express the concept of 'simple present' as unnecessary.
Interlingua is notable in the sense that unlike most auxiliary languages, that seek to minimise or eliminate any irregular aspects, Interlingua takes a flexible approach. It is mandatory to use certain exceptions in Interlingua while others have been kept optional.
Unlike Esperanto, the most popular auxiliary language, Interlingua doesn't have a 'one letter one sound' orthography. As in English, several letters can be pronounced in different ways; depending on where they are in a word. For instance, the letter S can be pronounced as either [s] (stato) or [z] (Chinese). Here is a list of other mandatory exceptions in pronunciation:
|Letter / Digraph||Possible Pronunciations||Rules||Examples|
[ts] (or [s])
|[k] when c is followed by a, o, u or any consonant
[ts] (or /s/) when e, i or y come after c
|like [k] in words of Greek origin
[tʃ] only in a few words (very rare)
[ʃ] in several words that come from the French
|cholera, chrome, echo
but silent after r and t
|rh||[r]||always pronounced like [r]||rhetorica, rheumatic|
|[s] if followed by a consonant
[z] between vowels
|sh||[ʃ]||always pronounced like [ʃ]||Shakespeare.|
|th||[t]||always pronounced like [t]||theatro|
|ph||[f]||always pronounced like [f]||photographia, photosynthese|
|[t] when it is followed by a, o, u or any consonant
[ts] when e, i or y come after t
|[u:] when between two consonants or stressed before a vowel
[w] when unstressed and precedes a vowel
like [z] when precedes a vowel
between two vowels
|[j] when unstressed before vowels
other like [i:]
Besides, there are also unassimilated guest words that retain their original pronunciation and spelling; though the diacritics are usually removed. Commons examples of such words are radios Röntgen (X rays) and kümmel.
Just like in English, where I am is usually contracted to I'm and he is to he's, such contractions are also found in Interlingua and these two are compulsory to observe:
|de (of) + le (the)||del||del matre (of the mother)|
|a (to) + le (the)||al||al luna (to the moon)|
Plurals can be formed in three different ways depending on the ending of a noun.
|ends in a consonant other than c||-es||conversation - conversationes
pais - paises
|ends in c||-hes||roc - roches
choc - choches
|ends in a vowel||-s||radio - radios
academia - academias
There are also irregular plurals that occur in guest words. The common ones are tests (from 'test'), addenda (from 'addendum') and lieder (from 'lied').
|Numbers||Logical Name||Name used|
Parts of speech
- Not all adverbs are derived from adjectives.
- If an adjective ends with -c, an adverb derived from it takes -amente (instead of -mente).
- Sia is the imperative form of esser ('to be'): Sia contente! 'Be content!'
- if s is between vowels, it can be pronounced [z], like in "these" (instead of the [s] of "stay")
- if x is between vowels, it can be spoken like the [ɡz] in "exact" (instead of like the [ks] in "fox")
Optional short forms
- "ha" for "habe", 'has', 'have'
- "va" for "vade", 'goes', 'go'
- "es" for "esse", 'is', 'am', 'are'
Alternative forms of esser
- Note. These forms are rarely used.
- "so", a first-person singular present tense
- "son", a plural present tense
- "era" for "esseva"
- "sera" for "essera"
- "serea" for "esserea"
Comparative and superlative adjectives
- "(le) minor" instead of "(le) plus parve"
- "(le) major" instead of "(le) plus magne"
- "(le) melior" instead of "(le) plus bon"
- "(le) pejor" instead of "(le) plus mal"
- "minime" instead of "le plus parve" or "le minor"
- "maxime" instead of "le plus magne" or "le major"
- "optime" instead of "le plus bon" or "le melior"
- "pessime" instead of "le plus mal" or "le pejor"
- Alexander Gode & Hugh Blair (2011-10-23). "Grammar of Interlingua (Second Edition)".