7 GRAMMAR RULES   1. PRESEN SIMPLE present tense + common aspect   2. PRESENT PROGRESSIVE subject + verb to be + verb ING   3. SIMPLE PAST subject + verb in simple past   4. PAST PROGRESSIVE subject + was/were + verb ING   5. PRESENT PERFECT PROGRESSIVE subject + have/has been + verb ING   6. FUTURE SIMPLE subject +  WILL + base form of the verb   7. FUTURE PROGRESSIVE subject + WILL BE + verb ING