Study Languages
Study Spanish: Acabar De + Infinitive
This site is an online introductory lesson to the use of acabar de. Poder, ir a, and volver a are also introduced as other double verb constructions. A quiz, oral exercise and test at the end of the lesson evaluate the student's mastery...
Study Languages
Study Spanish: Ir a + Infinitive
Good introductory lesson to the use of "ir a" to indicate future events. A list of adverbs that denote future time periods may also prove useful. "Poder", "acabar de", and "volver a" are introduced as other double verb constructions. A...
Study Languages
Study Spanish: Volver a + Infinitive
Good introductory lesson to the use of "volver a". "Poder", "ir a", and "acabar de" are also introduced as other double verb constructions. A quiz, oral exercize, and short test at the end of the lesson tests the student's mastery of...
University of Calgary
University of Calgary: Sentence Elements: Noun & Verb Phrases
This section of an online grammar guide provides definitions and examples of noun and verb phrases and how they are used in sentences.
Other
Bowdoin Coll.: Spanish Grammar: Verbs Followed by Prepositions Before Infinitive
Many verbs need a preposition before an infinitive. This site provides a substantial list of verbs which require a pronoun before an infinitive and the meaning of the phrase it creates.
Khan Academy
Khan Academy: Auxiliary (Helping) Verbs
Is the underlined verb the main verb in the sentence, or is it helping the main verb?
College Claparede (Switzerland)
English Exercises Online: Use of the Gerund
Practice creating the gerund form of words by typing them into boxes within a set of ten sentences. Hints are available if needed, and answers can be checked when the exercise is finished.