Grammatical Tenses
by gerardo Torres
1. Past perfect: I had worked I had been working
2. Future (going to): I am going to work I am going to be working
3. Future perfect (going to): I am going to have worked I am going to have been working
4. Future in past: I was going to work I was going to be working
5. Future perfect in past: I was going to have worked I was going to have been working
6. Conditional: I would work I would be working
7. Conditional perfect: I would have worked I would have been working
8. Modals:I (can, could, ...) work I (can, could, ...) be working
9. Present:I work I am working
10. Present perfect:I have worked I have been working
11. Past: I worked I was working
12. Modals + Have: I (can, could, ...) have worked I (can, could, ...) have been working
13. Imperative: Work! Let's work!
14. Future:I will work I will be working
15. Future perfect: I will have worked I will have been working
