1. Future
1.1. Wil
1.1.1. Affirmative
1.1.1.1. I will walk
1.1.2. Negative
1.1.2.1. I won't walk
1.1.3. Question
1.1.3.1. Will you walk?
1.2. Going to
1.2.1. Affirmative
1.2.1.1. I am going to walk
1.2.2. Negative
1.2.2.1. I am not going to walk
1.2.3. Question
1.2.3.1. Are you goig to walk?
1.3. Present Continuous
1.3.1. Affirmative
1.3.1.1. I am walking
1.3.2. Negative
1.3.2.1. I am not walking
1.3.3. Question
1.3.3.1. Are you walking?
2. Past
2.1. Simple
2.1.1. Affirmative
2.1.1.1. I walked
2.1.2. Negative
2.1.2.1. I didn't walk
2.1.3. Question
2.1.3.1. Did you walk?
2.2. Continuous
2.2.1. Affirmative
2.2.1.1. I was walking
2.2.2. Negative
2.2.2.1. I wasn't walking
2.2.3. Question
2.2.3.1. Was you walking?
2.3. Perfect
2.3.1. Affirmtive
2.3.1.1. I had walked
2.3.2. Negative
2.3.2.1. I hadn't walked
2.3.3. Question
2.3.3.1. Had you walked?
2.4. Used to
2.4.1. Affirmative
2.4.1.1. I used to walk
2.4.2. Negative
2.4.2.1. I didn't use to walk
2.4.3. Question
2.4.3.1. Did you use to walk?
3. Present
3.1. Continuous
3.1.1. Affirmative
3.1.1.1. I am walking
3.1.2. Negative
3.1.2.1. I am not walking
3.1.3. Question
3.1.3.1. Are you walking?
3.2. Simple
3.2.1. Question
3.2.1.1. Do you walk?
3.2.2. Negative
3.2.2.1. I don't walk
3.2.3. Affirmative
3.2.3.1. I walk
3.3. Perfect
3.3.1. Simple
3.3.1.1. Question
3.3.1.1.1. Have I walked?
3.3.1.2. Negative
3.3.1.2.1. I haven't walked
3.3.1.3. Affirmative
3.3.1.3.1. I have walked
3.3.2. Continuous
3.3.2.1. Question
3.3.2.1.1. Have you been walking?
3.3.2.2. Negative
3.3.2.2.1. I haven't been walking
3.3.2.3. Affirmative
3.3.2.3.1. I have been walking
4. Modals
4.1. Possibility
4.1.1. He may come
4.1.2. He might come
4.2. Permission
4.2.1. Can
4.2.2. Could
4.3. Advice
4.3.1. Shuld
4.3.2. Ought to