practice exercises for tenses
1) Present Indefinite (practice ) 1 | 2 2) Present continues (practice) 1 | 2 3) Present Perfect ( Practice ) 1 | 2 4) Present perfect continuous (Practice) 1 | 2 5) Past Indefinite (practice ) 1 | 2 6) Past continuous ( Practice ) 1 | 2 7) Past perfect ( Practice ) 1 | 2 8) Past perfect continuous ( Practice ) 1 | 2 9) ...