PBS
Pbs Learning Media: Using the Present Progressive Tense
Present progressives describe an action in progress, or something that started in the past and is still happening. It is formed with the helping "to be" verb in the present tense and the present participle of the verb. [0:42]
Study Languages
Study Spanish: Present Progressive
This explanation of the present progressive tense includes stem-changing present participles and those that involve spelling changes. Examples illustrate this grammar principle and a test assesses student mastery of the content.
Grammarly
Grammarly Blog: Verb Forms
This page explains the five forms of verbs: root, third-person singular,present participle, past, and past participle and provides examples of each.
English Club
English Club: Basic Tenses: Regular Verbs
Notes and examples of verb tense including past, present, future, past participle, present participle, simple, continuous, perfect, and continuous perfect.
Robin L. Simmons
Grammar Bytes: The Auxiliary Verb
Printable information is provided that demonstrates how to identify an auxiliary verb in the context of a sentence.
University of Texas at Austin
Ut Austin: Introduction to French Verbs
Excellent overview of French verbs! Defines a verb, introduces the concepts of infinitives, conjugations (with sample), common auxiliaries and modals, transitive vs. intransitive and the formation of present and past participles - all in...
Colby College
Spanish Language & Culture: The Present Progressive Tense
Comprehensive online practice from Colby College is available for the present progressive tense. Regular, irregular, and stem-changing participles are included in this exercise. Utilize this self-grading online worksheet to help improve...
Other
Jefferson County School Dist.: Irregular & Helping Verbs
This site has an online slide show offers a drill on forming irregular verbs. One slide of 63 includes information on helping verbs. Last slide has links to some online practice for irregular verbs.
Study Languages
Study Spanish: Present Perfect
A straightforward explanation of how the present perfect tense is formed with a printer-friendly page that is great for note keeping. One free online quiz and test evaluate mastery.
University of Texas at Austin
University of Texas: Francais Interactif
This full-featured interactive textbook encounter utilizes French speakers in real life scenarios. Well structured for work on grammatical concepts (links to Tex's French Grammar), vocabulary, listening comprehension and exposure to...
Language Guide
Language Guide: El Gerundio
A very brief explanation of how to form the present participle for ar/er/ir verbs and later form the present progressive tense with the participle.
Colby College
Spanish Language & Culture: The Present Perfect Tense
Review examples and then complete three online exercises dealing with the present perfect tense. English translations are provided for some of the examples. The first exercise provides verb infinitives as cues for the present perfect...
Colby College
Spanish Language & Culture
Colby College provides a large collection of exercises on adjectives, adverbs, numbers, prepositions, clauses, study modules, and more.
Online Writing Lab at Purdue University
Purdue University Owl: Irregular Verbs
Here is a list of common irregular verbs showing the present, preterit, and past participle. Includes charts for rise vs. raise, sit vs. set, lie vs. lay, which will help prevent misusing these verbs.
Other
Kryss Tal: Grammar: Introduction to Grammar
This site provides a very good overview of grammar components. Grammar examples and links are provided.
Language Guide
Language Guide: El Participio Pasado
This grammar tutorial explains the formation of the past participle for ar/er/ir verbs as well as some irregular forms. A couple of examples are given to show the formation of the present perfect.