People learning English as a second language often have trouble knowing when and when not to use articles. Often, this is because the learner does not know whether the noun was countable (and whether the countable known is plural or singular) or uncountable (also called “non-count” nouns).

The following tables summarize nicely when, and which, articles to use under these conditions:

Maintaining this website requires alerts and feedback from the students that use it when they see a problem or have a suggestion.