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



Infinitive
Infinitive
to sum
Participle
Present
summing
Past
summed