to sum
Regular verb: sum - summed- summed

Indicative 	
Present 	Present continuous 	Preterite 	Preterite continuous 	
I don't sum
you don't sum
she doesn't sum
we don't sum
you don't sum
they don't sum 	I'mnot summing
youaren't summing
sheisn't summing
wearen't summing
youaren't summing
theyaren't summing	I didn't sum
you didn't sum
she didn't sum
we didn't sum
you didn't sum
they didn't sum 	Iwasn't summing
youweren't summing
shewasn't summing
weweren't summing
youweren't summing
theyweren't summing	
Present perfect 	Present perfect continuous 	Pluperfect 	Pluperfect continuous 	
I haven't summed
you haven't summed
she hasn't summed
we haven't summed
you haven't summed
they haven't summed	I haven't  been summing
you haven't  been summing
she hasn't  been summing
we haven't  been summing
you haven't  been summing
they haven't  been summing	I hadn't summed
you hadn't summed
she hadn't summed
we hadn't summed
you hadn't summed
they hadn't summed	I hadn't been summing
you hadn't been summing
she hadn't been summing
we hadn't been summing
you hadn't been summing
they hadn't been summing	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
I won't sum
you won't sum
she won't sum
we won't sum
you won't sum
they won't sum 	I won't be summing
you won't be summing
she won't be summing
we won't be summing
you won't be summing
they won't be summing	I won't have summed
you won't have summed
she won't have summed
we won't have summed
you won't have summed
they won't have summed	I won't have been summing
you won't have been summing
she won't have been summing
we won't have been summing
you won't have been summing
they won't have been summing	

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

Infinitive 	
Imperative 	
Infinitive 	 	Imperative 	 	
to sum 	 	do not sum
Let's not sum
do not sum 	 	

Participle 	
Present 	Past 	 	 	
summing	summed