A Gerund/ Gerund Phrase is a verb form that acts like a noun and ALWAYS ends in -ing. Hint: Replace the gerund with "this thing," or, "that thing" to test your answer.
A participle / participle phrase is a verb that functions in a sentence as an adjective. It described nouns and pronouns.
Present -> ends in -ing
Past -> ends in - ed
Irregular -> various endings
Infinitive / infinitive phrases is a verb form preceded by the word "to"
Don't confuse with the preposition "to"
Infinitive = to + verb
Preposition = to + noun or pronoun
sometimes the "to" is dropped.
I hope this helped. Of course, this is the 11th-grade versions of English. Also, if you have any other questions let me know :)
