I butter you butter he butters we butter you butter they butter
Present continuous
I am buttering you are buttering he is buttering we are buttering you are buttering they are buttering
Preterite
I buttered you buttered he buttered we buttered you buttered they buttered
Preterite continuous
I was buttering you were buttering he was buttering we were buttering you were buttering they were buttering
Present perfect
I have buttered you have buttered he has buttered we have buttered you have buttered they have buttered
Present perfect continuous
I have been buttering you have been buttering he has been buttering we have been buttering you have been buttering they have been buttering
Pluperfect
I had buttered you had buttered he had buttered we had buttered you had buttered they had buttered
Pluperfect continuous
I had been buttering you had been buttering he had been buttering we had been buttering you had been buttering they had been buttering
Future
I will butter you will butter he will butter we will butter you will butter they will butter
Future continuous
I will be buttering you will be buttering he will be buttering we will be buttering you will be buttering they will be buttering
Future perfect
I will have buttered you will have buttered he will have buttered we will have buttered you will have buttered they will have buttered
Future perfect continuous
I will have been buttering you will have been buttering he will have been buttering we will have been buttering you will have been buttering they will have been buttering
Conditional
Present
I would butter you would butter he would butter we would butter you would butter they would butter
Present continuous
I would be buttering you would be buttering he would be buttering we would be buttering you would be buttering they would be buttering
Past
I would have buttered you would have buttered he would have buttered we would have buttered you would have buttered they would have buttered
Past continuous
I would have been buttering you would have been buttering he would have been buttering we would have been buttering you would have been buttering they would have been buttering