I diphthongise you diphthongise he diphthongises we diphthongise you diphthongise they diphthongise
Present continuous
I am diphthongising you are diphthongising he is diphthongising we are diphthongising you are diphthongising they are diphthongising
Preterite
I diphthongised you diphthongised he diphthongised we diphthongised you diphthongised they diphthongised
Preterite continuous
I was diphthongising you were diphthongising he was diphthongising we were diphthongising you were diphthongising they were diphthongising
Present perfect
I have diphthongised you have diphthongised he has diphthongised we have diphthongised you have diphthongised they have diphthongised
Present perfect continuous
I have been diphthongising you have been diphthongising he has been diphthongising we have been diphthongising you have been diphthongising they have been diphthongising
Pluperfect
I had diphthongised you had diphthongised he had diphthongised we had diphthongised you had diphthongised they had diphthongised
Pluperfect continuous
I had been diphthongising you had been diphthongising he had been diphthongising we had been diphthongising you had been diphthongising they had been diphthongising
Future
I will diphthongise you will diphthongise he will diphthongise we will diphthongise you will diphthongise they will diphthongise
Future continuous
I will be diphthongising you will be diphthongising he will be diphthongising we will be diphthongising you will be diphthongising they will be diphthongising
Future perfect
I will have diphthongised you will have diphthongised he will have diphthongised we will have diphthongised you will have diphthongised they will have diphthongised
Future perfect continuous
I will have been diphthongising you will have been diphthongising he will have been diphthongising we will have been diphthongising you will have been diphthongising they will have been diphthongising
Conditional
Present
I would diphthongise you would diphthongise he would diphthongise we would diphthongise you would diphthongise they would diphthongise
Present continuous
I would be diphthongising you would be diphthongising he would be diphthongising we would be diphthongising you would be diphthongising they would be diphthongising
Past
I would have diphthongised you would have diphthongised he would have diphthongised we would have diphthongised you would have diphthongised they would have diphthongised
Past continuous
I would have been diphthongising you would have been diphthongising he would have been diphthongising we would have been diphthongising you would have been diphthongising they would have been diphthongising