I occur you occur he occurs we occur you occur they occur
Present continuous
I am occurring you are occurring he is occurring we are occurring you are occurring they are occurring
Preterite
I occurred you occurred he occurred we occurred you occurred they occurred
Preterite continuous
I was occurring you were occurring he was occurring we were occurring you were occurring they were occurring
Present perfect
I have occurred you have occurred he has occurred we have occurred you have occurred they have occurred
Present perfect continuous
I have been occurring you have been occurring he has been occurring we have been occurring you have been occurring they have been occurring
Pluperfect
I had occurred you had occurred he had occurred we had occurred you had occurred they had occurred
Pluperfect continuous
I had been occurring you had been occurring he had been occurring we had been occurring you had been occurring they had been occurring
Future
I will occur you will occur he will occur we will occur you will occur they will occur
Future continuous
I will be occurring you will be occurring he will be occurring we will be occurring you will be occurring they will be occurring
Future perfect
I will have occurred you will have occurred he will have occurred we will have occurred you will have occurred they will have occurred
Future perfect continuous
I will have been occurring you will have been occurring he will have been occurring we will have been occurring you will have been occurring they will have been occurring
Conditional
Present
I would occur you would occur he would occur we would occur you would occur they would occur
Present continuous
I would be occurring you would be occurring he would be occurring we would be occurring you would be occurring they would be occurring
Past
I would have occurred you would have occurred he would have occurred we would have occurred you would have occurred they would have occurred
Past continuous
I would have been occurring you would have been occurring he would have been occurring we would have been occurring you would have been occurring they would have been occurring