I summate you summate he summates we summate you summate they summate
Present continuous
I am summating you are summating he is summating we are summating you are summating they are summating
Preterite
I summated you summated he summated we summated you summated they summated
Preterite continuous
I was summating you were summating he was summating we were summating you were summating they were summating
Present perfect
I have summated you have summated he has summated we have summated you have summated they have summated
Present perfect continuous
I have been summating you have been summating he has been summating we have been summating you have been summating they have been summating
Pluperfect
I had summated you had summated he had summated we had summated you had summated they had summated
Pluperfect continuous
I had been summating you had been summating he had been summating we had been summating you had been summating they had been summating
Future
I will summate you will summate he will summate we will summate you will summate they will summate
Future continuous
I will be summating you will be summating he will be summating we will be summating you will be summating they will be summating
Future perfect
I will have summated you will have summated he will have summated we will have summated you will have summated they will have summated
Future perfect continuous
I will have been summating you will have been summating he will have been summating we will have been summating you will have been summating they will have been summating
Conditional
Present
I would summate you would summate he would summate we would summate you would summate they would summate
Present continuous
I would be summating you would be summating he would be summating we would be summating you would be summating they would be summating
Past
I would have summated you would have summated he would have summated we would have summated you would have summated they would have summated
Past continuous
I would have been summating you would have been summating he would have been summating we would have been summating you would have been summating they would have been summating