Student Shared

- future tenses
1. future tense
2. future continuous
3. future perfect
4. future perfect continuous
- past tenses
1. simple past tense
2. past continuous tense
3. past participle
4. past perfect continuous
- present tenses
1. simple present tense
2. present continuous tense
3. present perfect
4. present perfect continuous
usage, timeline, time signal

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