I don't thumbtack you don't thumbtack he doesn't thumbtack we don't thumbtack you don't thumbtack they don't thumbtack
Present continuous
I'm not thumbtacking you aren't thumbtacking he isn't thumbtacking we aren't thumbtacking you aren't thumbtacking they aren't thumbtacking
Preterite
I didn't thumbtack you didn't thumbtack he didn't thumbtack we didn't thumbtack you didn't thumbtack they didn't thumbtack
Preterite continuous
I wasn't thumbtacking you weren't thumbtacking he wasn't thumbtacking we weren't thumbtacking you weren't thumbtacking they weren't thumbtacking
Present perfect
I haven't thumbtacked you haven't thumbtacked he hasn't thumbtacked we haven't thumbtacked you haven't thumbtacked they haven't thumbtacked
Present perfect continuous
I haven't been thumbtacking you haven't been thumbtacking he hasn't been thumbtacking we haven't been thumbtacking you haven't been thumbtacking they haven't been thumbtacking
Pluperfect
I hadn't thumbtacked you hadn't thumbtacked he hadn't thumbtacked we hadn't thumbtacked you hadn't thumbtacked they hadn't thumbtacked
Pluperfect continuous
I hadn't been thumbtacking you hadn't been thumbtacking he hadn't been thumbtacking we hadn't been thumbtacking you hadn't been thumbtacking they hadn't been thumbtacking
Future
I won't thumbtack you won't thumbtack he won't thumbtack we won't thumbtack you won't thumbtack they won't thumbtack
Future continuous
I won't be thumbtacking you won't be thumbtacking he won't be thumbtacking we won't be thumbtacking you won't be thumbtacking they won't be thumbtacking
Future perfect
I won't have thumbtacked you won't have thumbtacked he won't have thumbtacked we won't have thumbtacked you won't have thumbtacked they won't have thumbtacked
Future perfect continuous
I won't have been thumbtacking you won't have been thumbtacking he won't have been thumbtacking we won't have been thumbtacking you won't have been thumbtacking they won't have been thumbtacking
Conditional
Present
I wouldn't thumbtack you wouldn't thumbtack he wouldn't thumbtack we wouldn't thumbtack you wouldn't thumbtack they wouldn't thumbtack
Present continuous
I wouldn't be thumbtacking you wouldn't be thumbtacking he wouldn't be thumbtacking we wouldn't be thumbtacking you wouldn't be thumbtacking they wouldn't be thumbtacking
Past
I wouldn't have thumbtacked you wouldn't have thumbtacked he wouldn't have thumbtacked we wouldn't have thumbtacked you wouldn't have thumbtacked they wouldn't have thumbtacked
Past continuous
I wouldn't have been thumbtacking you wouldn't have been thumbtacking he wouldn't have been thumbtacking we wouldn't have been thumbtacking you wouldn't have been thumbtacking they wouldn't have been thumbtacking
Imperative
Imperative
do not thumbtack Let's not thumbtack do not thumbtack