are made by adding a form of the helping verb -be to the -ing-10197
are made by adding a form of the helping verb -be to the -ing form of the verb.
This multiple choice question (MCQ) is related to the book/course
vu eng101 English Comprehension.
It can also be found in
vu eng101 Lecture No.42 - Quiz No.5.
are made by adding a form of the helping verb -be to the -ing form of the verb.
The Present Perfect Tense
The Past Perfect Tense
The Future Perfect Tense
The Three Progressive Tense
