I amass you amass he amasses we amass you amass they amass
Present continuous
I am amassing you are amassing he is amassing we are amassing you are amassing they are amassing
Preterite
I amassed you amassed he amassed we amassed you amassed they amassed
Preterite continuous
I was amassing you were amassing he was amassing we were amassing you were amassing they were amassing
Present perfect
I have amassed you have amassed he has amassed we have amassed you have amassed they have amassed
Present perfect continuous
I have been amassing you have been amassing he has been amassing we have been amassing you have been amassing they have been amassing
Pluperfect
I had amassed you had amassed he had amassed we had amassed you had amassed they had amassed
Pluperfect continuous
I had been amassing you had been amassing he had been amassing we had been amassing you had been amassing they had been amassing
Future
I will amass you will amass he will amass we will amass you will amass they will amass
Future continuous
I will be amassing you will be amassing he will be amassing we will be amassing you will be amassing they will be amassing
Future perfect
I will have amassed you will have amassed he will have amassed we will have amassed you will have amassed they will have amassed
Future perfect continuous
I will have been amassing you will have been amassing he will have been amassing we will have been amassing you will have been amassing they will have been amassing
Conditional
Present
I would amass you would amass he would amass we would amass you would amass they would amass
Present continuous
I would be amassing you would be amassing he would be amassing we would be amassing you would be amassing they would be amassing
Past
I would have amassed you would have amassed he would have amassed we would have amassed you would have amassed they would have amassed
Past continuous
I would have been amassing you would have been amassing he would have been amassing we would have been amassing you would have been amassing they would have been amassing