English verb conjugation
TO SUM

Regular verb: sum - summed - summed

Indicative

Present	Present continuous	Preterite	Preterite continuous
don't I sum? don't you sum? doesn't he sum? don't we sum? don't you sum? don't they sum?	am I not summing? aren't you summing? isn't he summing? aren't we summing? aren't you summing? aren't they summing?	didn't I sum? didn't you sum? didn't he sum? didn't we sum? didn't you sum? didn't they sum?	wasn't I summing? weren't you summing? wasn't he summing? weren't we summing? weren't you summing? weren't they summing?
Present perfect	Present perfect continuous	Pluperfect	Pluperfect continuous
haven't I summed? haven't you summed? hasn't he summed? haven't we summed? haven't you summed? haven't they summed?	haven't I been summing? haven't you been summing? hasn't he been summing? haven't we been summing? haven't you been summing? haven't they been summing?	hadn't I summed? hadn't you summed? hadn't he summed? hadn't we summed? hadn't you summed? hadn't they summed?	hadn't I been summing? hadn't you been summing? hadn't he been summing? hadn't we been summing? hadn't you been summing? hadn't they been summing?
Future	Future continuous	Future perfect	Future perfect continuous
won't I sum? won't you sum? won't he sum? won't we sum? won't you sum? won't they sum?	won't I be summing? won't you be summing? won't he be summing? won't we be summing? won't you be summing? won't they be summing?	won't I have summed? won't you have summed? won't he have summed? won't we have summed? won't you have summed? won't they have summed?	won't I have been summing? won't you have been summing? won't he have been summing? won't we have been summing? won't you have been summing? won't they have been summing?

Conditional

Present	Present continuous	Past	Past continuous
wouldn't I sum? wouldn't you sum? wouldn't he sum? wouldn't we sum? wouldn't you sum? wouldn't they sum?	wouldn't I be summing? wouldn't you be summing? wouldn't he be summing? wouldn't we be summing? wouldn't you be summing? wouldn't they be summing?	wouldn't I have summed? wouldn't you have summed? wouldn't he have summed? wouldn't we have summed? wouldn't you have summed? wouldn't they have summed?	wouldn't I have been summing? wouldn't you have been summing? wouldn't he have been summing? wouldn't we have been summing? wouldn't you have been summing? wouldn't they have been summing?

Infinitive

Imperative

Infinitive		Imperative
to sum		- - -

Participle

Present	Past
summing	summed