Tenses Formula

Active 

 Present 
• Simple   = S + V+ O
• Continuous  = S + to be + Ving + O
• Perfect   = S + has/have + V1+ O
• Perfect Continuous = S + has/have + been + Ving + O
 Past 
• Simple   = S + V1 + O
• Continuous   = S + was/were + Ving + O
• Perfect   = S + had + V2  + O
• Perfect Continuous = S + had + been +Ving + O
 Future Present 
• Simple   = S + will/shall + V1 + O
• Continuous   = S + will/shall + be + Ving + O
• Perfect   = S + will/shall + have + V1 + O
• Perfect Continuous = S + will/shall + have + been + Ving + O
 Future Past 
• Simple   = S + would/should + V1 + O
• Continuous  = S + would/should + be + Ving + O
• Perfect   = S + would/should + have + V3 + O
• Perfect Continuous = S + would/should + have + been + Ving + O

Passive 

 Present 
• Simple = S + to be + V3 + O
• Continuous   = S + to be + being + V3 + O
• Perfect   = S + has/have + been + V3 + O
• Perfect Continuous = S + has/have + been + being +V3 + O

 Past 
• Simple   = S + to be + V3 + O
• Continuous   = S + was/were + being + V3 + O
• Perfect   = S + had + been + V3 + O
• Perfect Continuous = S + had + been + being + V3 + O

 Future Present 
• Simple   = S + will/shall + be + V3 + O
• Continuous  = S + will/shall + be + being + V3 + O
• Perfect   = S + will/shall + have + been + V3 + O
• Perfect Continuous = S + will/shall + have + been + being + V3 + O

 Future Past 
• Simple   = S + would/should + be + V3 + O
• Continuous  = S + would/should + be + being + V3 + O
• Perfect   = S + would/should + have + been + V3 + O
• Perfect Continuous = S + would/should + have + been + being + V3 + O