English verb conjugation
TO SUM

Regular verb: sum - summed - summed

Indicative

Present	Present continuous	Preterite	Preterite continuous
do I sum? do you sum? does she sum? do we sum? do you sum? do they sum?	am I summing? are you summing? is she summing? are we summing? are you summing? are they summing?	did I sum? did you sum? did she sum? did we sum? did you sum? did they sum?	was I summing? were you summing? was she summing? were we summing? were you summing? were they summing?
Present perfect	Present perfect continuous	Pluperfect	Pluperfect continuous
have I summed? have you summed? has she summed? have we summed? have you summed? have they summed?	have I been summing? have you been summing? has she been summing? have we been summing? have you been summing? have they been summing?	had I summed? had you summed? had she summed? had we summed? had you summed? had they summed?	had I been summing? had you been summing? had she been summing? had we been summing? had you been summing? had they been summing?
Future	Future continuous	Future perfect	Future perfect continuous
will I sum? will you sum? will she sum? will we sum? will you sum? will they sum?	will I be summing? will you be summing? will she be summing? will we be summing? will you be summing? will they be summing?	will I have summed? will you have summed? will she have summed? will we have summed? will you have summed? will they have summed?	will I have been summing? will you have been summing? will she have been summing? will we have been summing? will you have been summing? will they have been summing?

Conditional

Present	Present continuous	Past	Past continuous
would I sum? would you sum? would she sum? would we sum? would you sum? would they sum?	would I be summing? would you be summing? would she be summing? would we be summing? would you be summing? would they be summing?	would I have summed? would you have summed? would she have summed? would we have summed? would you have summed? would they have summed?	would I have been summing? would you have been summing? would she have been summing? would we have been summing? would you have been summing? would they have been summing?

Infinitive

Imperative

Infinitive		Imperative
to sum		- - -

Participle

Present	Past
summing	summed