I function you function she functions we function you function they function
Present continuous
I am functioning you are functioning she is functioning we are functioning you are functioning they are functioning
Preterite
I functioned you functioned she functioned we functioned you functioned they functioned
Preterite continuous
I was functioning you were functioning she was functioning we were functioning you were functioning they were functioning
Present perfect
I have functioned you have functioned she has functioned we have functioned you have functioned they have functioned
Present perfect continuous
I have been functioning you have been functioning she has been functioning we have been functioning you have been functioning they have been functioning
Pluperfect
I had functioned you had functioned she had functioned we had functioned you had functioned they had functioned
Pluperfect continuous
I had been functioning you had been functioning she had been functioning we had been functioning you had been functioning they had been functioning
Future
I will function you will function she will function we will function you will function they will function
Future continuous
I will be functioning you will be functioning she will be functioning we will be functioning you will be functioning they will be functioning
Future perfect
I will have functioned you will have functioned she will have functioned we will have functioned you will have functioned they will have functioned
Future perfect continuous
I will have been functioning you will have been functioning she will have been functioning we will have been functioning you will have been functioning they will have been functioning
Conditional
Present
I would function you would function she would function we would function you would function they would function
Present continuous
I would be functioning you would be functioning she would be functioning we would be functioning you would be functioning they would be functioning
Past
I would have functioned you would have functioned she would have functioned we would have functioned you would have functioned they would have functioned
Past continuous
I would have been functioning you would have been functioning she would have been functioning we would have been functioning you would have been functioning they would have been functioning