1. Present
1.1. TO BE [Am/Is/Are]
1.1.1. Affirmative
1.1.1.1. I am work
1.1.2. Negative
1.1.2.1. He isn't work
1.1.3. Interrogative
1.1.3.1. Is she work?
1.2. Present Continuos [TO BE] + ing
1.2.1. Affirmative
1.2.1.1. I am working
1.2.2. Negative
1.2.2.1. He isn't working
1.2.3. Interrogative
1.2.3.1. Is he working?
1.3. Simple Present
1.3.1. Affirmative [he/she/it] + s
1.3.1.1. I work hard
1.3.1.2. He works a lot
1.3.2. Do-Does [Do->I/we/you/they Does->he/she/it]
1.3.2.1. Negative
1.3.2.1.1. He doesn't work
1.3.2.1.2. You dont't work
1.3.2.2. Interrogative
1.3.2.2.1. Do we work?
1.3.2.2.2. Does he work?
2. Past
2.1. TO BE [Was->I/He/She/It Were->You/We/They]
2.1.1. Affirmative
2.1.1.1. I was at work
2.1.2. Negative
2.1.2.1. He wasn't at work
2.1.3. Interrogative
2.1.3.1. Were you at work?
2.2. Past Continuos [TO BE] +ing
2.2.1. Affirmative
2.2.1.1. I was working
2.2.2. Negative
2.2.2.1. We weren't working
2.2.3. Interrogative
2.2.3.1. Was he working?
2.3. Simple Past
2.3.1. Affirmative
2.3.1.1. Regular verbs [verb+ed]
2.3.1.1.1. I worked yesterday
2.3.1.2. Irregular verbs
2.3.1.2.1. She ate ago
2.3.2. Did
2.3.2.1. Negative
2.3.2.1.1. He didn't at work
2.3.2.2. Interrogative
2.3.2.2.1. Did they at work?