EXERCISE
ENGLISH ONLINE
v What is the tense ?
v How many tenses are there in English ?
v What are they ?
v What is the simple present tense used for ?
v What is the present continuous tense used for ?
v What is the present perfect tense used for ?
v What is the present perfect continuous tense ?
v What is the simple past tense used for ?
v What is the past continuous tense used for?