Conjugation of the verb sum

Indicative
Present
Isum
yousum
he/she/itsums
wesum
yousum
theysum
Present Progressive
Iam summing
youare summing
he/she/itis summing
weare summing
youare summing
theyare summing
Past
Isummed
yousummed
he/she/itsummed
wesummed
yousummed
theysummed
Past Progressive
Iwas summing
youwere summing
he/she/itwas summing
wewere summing
youwere summing
theywere summing
Perfect
Ihave summed
youhave summed
he/she/ithas summed
wehave summed
youhave summed
theyhave summed
Perfect Progressive
Ihave been summing
youhave been summing
he/she/ithas been summing
wehave been summing
youhave been summing
theyhave been summing
Pluperfect I
Ihad summed
youhad summed
he/she/ithad summed
wehad summed
youhad summed
theyhad summed
Pluperfect II
Ihad summed
youhad summed
he/she/ithad summed
wehad summed
youhad summed
theyhad summed
Future I
Iwill sum
youwill sum
he/she/itwill sum
wewill sum
youwill sum
theywill sum
Future II
Iam going to sum
youare going to sum
he/she/itis going to sum
weare going to sum
youare going to sum
theyare going to sum
Future Progressive
Iwill be summing
youwill be summing
he/she/itwill be summing
wewill be summing
youwill be summing
theywill be summing
Future Perfect
Iwill have summed
youwill have summed
he/she/itwill have summed
wewill have summed
youwill have summed
theywill have summed
Conditional
Present
Iwould sum
youwould sum
he/she/itwould sum
wewould sum
youwould sum
theywould sum
Progressive
Iwould be summing
youwould be summing
he/she/itwould be summing
wewould be summing
youwould be summing
theywould be summing
Past Progressive
Iwould have been summing
youwould have been summing
he/she/itwould have been summing
wewould have been summing
youwould have been summing
theywould have been summing
Subjunctive
Present
Isum
yousum
he/she/itsums
wesum
yousum
theysum
Present Perfect
Ihave summed
youhave summed
he/she/ithas summed
wehave summed
youhave summed
theyhave summed
Past
Isummed
yousummed
he/she/itsummed
wesummed
yousummed
theysummed
Pluperfect I
Ihad summed
youhad summed
he/she/ithad summed
wehad summed
youhad summed
theyhad summed
Past
Isummed
yousummed
he/she/itsummed
wesummed
yousummed
theysummed
Pluperfect II
Ihad summed
youhad summed
he/she/ithad summed
wehad summed
youhad summed
theyhad summed
Imperative
Imperative
yousum
he/she/itsum
welet us sum
yousum
theysum
Negative Imperative
youdo not sum
he/she/itdo not sum
welet us not sum
youdo not sum
theydo not sum