I sustain you sustain she sustains we sustain you sustain they sustain
Present continuous
I am sustaining you are sustaining she is sustaining we are sustaining you are sustaining they are sustaining
Preterite
I sustained you sustained she sustained we sustained you sustained they sustained
Preterite continuous
I was sustaining you were sustaining she was sustaining we were sustaining you were sustaining they were sustaining
Present perfect
I have sustained you have sustained she has sustained we have sustained you have sustained they have sustained
Present perfect continuous
I have been sustaining you have been sustaining she has been sustaining we have been sustaining you have been sustaining they have been sustaining
Pluperfect
I had sustained you had sustained she had sustained we had sustained you had sustained they had sustained
Pluperfect continuous
I had been sustaining you had been sustaining she had been sustaining we had been sustaining you had been sustaining they had been sustaining
Future
I will sustain you will sustain she will sustain we will sustain you will sustain they will sustain
Future continuous
I will be sustaining you will be sustaining she will be sustaining we will be sustaining you will be sustaining they will be sustaining
Future perfect
I will have sustained you will have sustained she will have sustained we will have sustained you will have sustained they will have sustained
Future perfect continuous
I will have been sustaining you will have been sustaining she will have been sustaining we will have been sustaining you will have been sustaining they will have been sustaining
Conditional
Present
I would sustain you would sustain she would sustain we would sustain you would sustain they would sustain
Present continuous
I would be sustaining you would be sustaining she would be sustaining we would be sustaining you would be sustaining they would be sustaining
Past
I would have sustained you would have sustained she would have sustained we would have sustained you would have sustained they would have sustained
Past continuous
I would have been sustaining you would have been sustaining she would have been sustaining we would have been sustaining you would have been sustaining they would have been sustaining