University of Calgary
Univ. Of Calgary: Sentence Elements: Phrase Functions
This section of an online grammar guide provides information on how different types of phrases can function in a sentence. It also offers an interactive exercise for identifying phrase functions.
The Tongue Untied
The Tongue Untied: The Subjects
Defines and explains how to find the subject of a sentence. Gives several examples of subjects in different types of sentences.
Mocomi & Anibrain Digital Technologies
Mocomi: What Is a Clause?
Defines clause and provides examples of the different types. Includes an exercise to test your understanding.