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