English verb conjugation
TO SUM

Regular verb: sum - summed - summed

Indicative

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