- AFFIRMATIVE
- NEGATIVE
- INTERROGATIVE
- Mixed: Positive, negative and question form:
OTHER VERBS:
AFFIRMATIVE
NEGATIVE
QUESTIONS AND ANSWERS
WH-QUESTIONS
LINKS:
- http://www.perfect-english-grammar.com/simple-present-exercises.html
- http://web2.uvcs.uvic.ca/elc/StudyZone/330/grammar/pres1.htm
- http://a4esl.org/q/h/lb/psv.html
- http://www.englisch-hilfen.de/en/complex_tests/simple_present1/index.php
- http://www.englisch-hilfen.de/en/complex_tests/simple_present2/index.php
- (solo form and use) http://www.isabelperez.com/happy/tenses/present_simple.htm
- http://web2.uvcs.uvic.ca/elc/StudyZone/330/grammar/pres1.htm
- http://web2.uvcs.uvic.ca/elc/StudyZone/330/grammar/presnq1.htm
- http://www.clafoti.com/imagenes10/present_do_new.htm
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