Classical Gluonic doesn't have any grammaticalised tense or aspect, in order to make the language time symmetric. Most of the work of expressing the point or manner of unfolding in time of an action is done using expressions of time or adverbs, where context doesn't suffice. This article is about aspect, which is generally carried using adverbs, some of which have other functions, and others are fairly limited to the specific task of conveying aspect.

The following table list common adverbs of aspect. Unlike with grammatical mood, Gluonic tends to omit adverbs of aspect where clear from context and only use them to disambiguate or emphasise the meaning. The table gives the word that English grammarians usually employ to talk about the particular aspect indicated by the adverb, a literally meaning in other contexts, and some information about usage.

These function as normal adverbs, and may appear anywhere in a verb phrase an adverb might, but often come before the verb. Some can also function as prepositions and take a colour suffix to agree with their object.