I don't witness you don't witness he doesn't witness we don't witness you don't witness they don't witness
Present continuous
I'm not witnessing you aren't witnessing he isn't witnessing we aren't witnessing you aren't witnessing they aren't witnessing
Preterite
I didn't witness you didn't witness he didn't witness we didn't witness you didn't witness they didn't witness
Preterite continuous
I wasn't witnessing you weren't witnessing he wasn't witnessing we weren't witnessing you weren't witnessing they weren't witnessing
Present perfect
I haven't witnessed you haven't witnessed he hasn't witnessed we haven't witnessed you haven't witnessed they haven't witnessed
Present perfect continuous
I haven't been witnessing you haven't been witnessing he hasn't been witnessing we haven't been witnessing you haven't been witnessing they haven't been witnessing
Pluperfect
I hadn't witnessed you hadn't witnessed he hadn't witnessed we hadn't witnessed you hadn't witnessed they hadn't witnessed
Pluperfect continuous
I hadn't been witnessing you hadn't been witnessing he hadn't been witnessing we hadn't been witnessing you hadn't been witnessing they hadn't been witnessing
Future
I won't witness you won't witness he won't witness we won't witness you won't witness they won't witness
Future continuous
I won't be witnessing you won't be witnessing he won't be witnessing we won't be witnessing you won't be witnessing they won't be witnessing
Future perfect
I won't have witnessed you won't have witnessed he won't have witnessed we won't have witnessed you won't have witnessed they won't have witnessed
Future perfect continuous
I won't have been witnessing you won't have been witnessing he won't have been witnessing we won't have been witnessing you won't have been witnessing they won't have been witnessing
Conditional
Present
I wouldn't witness you wouldn't witness he wouldn't witness we wouldn't witness you wouldn't witness they wouldn't witness
Present continuous
I wouldn't be witnessing you wouldn't be witnessing he wouldn't be witnessing we wouldn't be witnessing you wouldn't be witnessing they wouldn't be witnessing
Past
I wouldn't have witnessed you wouldn't have witnessed he wouldn't have witnessed we wouldn't have witnessed you wouldn't have witnessed they wouldn't have witnessed
Past continuous
I wouldn't have been witnessing you wouldn't have been witnessing he wouldn't have been witnessing we wouldn't have been witnessing you wouldn't have been witnessing they wouldn't have been witnessing