What sort of grammar does Ido have?
The most regular grammar possible, without the exceptions which make most languages so difficult to learn. There is no (grammatical) gender, so no need to know that a noun is masculine or feminine or neuter. Adjectives do not vary to agree with nouns. The word order is relatively flexible. For example, an adjective can be put before or after the noun it qualifies, as convenient. Nouns end in -o in the singular, -i in the plural. For example, libro = book; libri = books. So from dento (tooth), kavalo (horse), tomato it is easy to make the words for teeth, horses, and tomatoes (denti, kavali, tomati). Adjectives end in -a, and form adverbs by substituting -e. For example, lenta = slow; lente = slowly). From bona (good), rapida (fast), facila (easy), felica (happy) it is simple to form the adverbs for well, quickly, easily and happily. Verb endings do not change according to person but only according to tense, and no verbs are irregular. Verbs end in -ar (infinitive), -as (present), -is (