don't I tug? don't you tug? doesn't she tug? don't we tug? don't you tug? don't they tug?
Presente continuo
am I not tugging? aren't you tugging? isn't she tugging? aren't we tugging? aren't you tugging? aren't they tugging?
Pretérito
didn't I tug? didn't you tug? didn't she tug? didn't we tug? didn't you tug? didn't they tug?
Pretérito continuo
wasn't I tugging? weren't you tugging? wasn't she tugging? weren't we tugging? weren't you tugging? weren't they tugging?
Presente perfecto
haven't I tugged? haven't you tugged? hasn't she tugged? haven't we tugged? haven't you tugged? haven't they tugged?
Presente perfecto continuo
haven't I been tugging? haven't you been tugging? hasn't she been tugging? haven't we been tugging? haven't you been tugging? haven't they been tugging?
Pluscuamperfecto
hadn't I tugged? hadn't you tugged? hadn't she tugged? hadn't we tugged? hadn't you tugged? hadn't they tugged?
Pluscuamperfecto continuo
hadn't I been tugging? hadn't you been tugging? hadn't she been tugging? hadn't we been tugging? hadn't you been tugging? hadn't they been tugging?
Futuro simple
won't I tug? won't you tug? won't she tug? won't we tug? won't you tug? won't they tug?
Futuro continuo
won't I be tugging? won't you be tugging? won't she be tugging? won't we be tugging? won't you be tugging? won't they be tugging?
Futuro perfecto
won't I have tugged? won't you have tugged? won't she have tugged? won't we have tugged? won't you have tugged? won't they have tugged?
Futuro perfecto contínuo
won't I have been tugging? won't you have been tugging? won't she have been tugging? won't we have been tugging? won't you have been tugging? won't they have been tugging?
Condicional
Presente
wouldn't I tug? wouldn't you tug? wouldn't she tug? wouldn't we tug? wouldn't you tug? wouldn't they tug?
Presente continuo
wouldn't I be tugging? wouldn't you be tugging? wouldn't she be tugging? wouldn't we be tugging? wouldn't you be tugging? wouldn't they be tugging?
Passado
wouldn't I have tugged? wouldn't you have tugged? wouldn't she have tugged? wouldn't we have tugged? wouldn't you have tugged? wouldn't they have tugged?
Passado continuo
wouldn't I have been tugging? wouldn't you have been tugging? wouldn't she have been tugging? wouldn't we have been tugging? wouldn't you have been tugging? wouldn't they have been tugging?