Present Tense
1. Simple Present - I eat food
S + V1 + O
2. Present Continuous - I am eating food
S + H.V (am/is/are) + V4 + O
3. Present Perfect - I have eaten food
S + H.V (have/has) + V3 + O
4. Present Perfect Continuous - I have been eating food
S + H.V (have been/ has been) + V4 + O
Past Tense
1. Simple Present - I ate food
S + V2 + O
2. Present Continuous - I was eating food
S + H.V (was/were) + V4 + O
3. Present Perfect - I had eaten food
S + H.V (had) + V3 + O
4. Present Perfect Continuous - I had been eating food
S + H.V (had been) + V4 + O
Future Perfect
1. Simple Future - I will eat food
S + H.V (will/shall) + V1 + O
2. Future Continuous - I will be eating food
S + H.V (will be/shall be) + V4 + O
3. Future Perfect - I will have eaten food
S + H.V (will have/shall have) + V3 + O
4. Future Perfect Continuous - I will have been eating food
S + H.V (will have been/shall have been) + V4 + O
