I tumble you tumble he tumbles we tumble you tumble they tumble
Present continuous
I am tumbling you are tumbling he is tumbling we are tumbling you are tumbling they are tumbling
Preterite
I tumbled you tumbled he tumbled we tumbled you tumbled they tumbled
Preterite continuous
I was tumbling you were tumbling he was tumbling we were tumbling you were tumbling they were tumbling
Present perfect
I have tumbled you have tumbled he has tumbled we have tumbled you have tumbled they have tumbled
Present perfect continuous
I have been tumbling you have been tumbling he has been tumbling we have been tumbling you have been tumbling they have been tumbling
Pluperfect
I had tumbled you had tumbled he had tumbled we had tumbled you had tumbled they had tumbled
Pluperfect continuous
I had been tumbling you had been tumbling he had been tumbling we had been tumbling you had been tumbling they had been tumbling
Future
I will tumble you will tumble he will tumble we will tumble you will tumble they will tumble
Future continuous
I will be tumbling you will be tumbling he will be tumbling we will be tumbling you will be tumbling they will be tumbling
Future perfect
I will have tumbled you will have tumbled he will have tumbled we will have tumbled you will have tumbled they will have tumbled
Future perfect continuous
I will have been tumbling you will have been tumbling he will have been tumbling we will have been tumbling you will have been tumbling they will have been tumbling
Conditional
Present
I would tumble you would tumble he would tumble we would tumble you would tumble they would tumble
Present continuous
I would be tumbling you would be tumbling he would be tumbling we would be tumbling you would be tumbling they would be tumbling
Past
I would have tumbled you would have tumbled he would have tumbled we would have tumbled you would have tumbled they would have tumbled
Past continuous
I would have been tumbling you would have been tumbling he would have been tumbling we would have been tumbling you would have been tumbling they would have been tumbling