Conjugation and declension of "sum" in English

Declension of the noun sum[sʌm]     

Singular
Plural
Singular
Common case
sum
sums
Possessive case
sum's
sums'
Plural
sums
sums'

Conjugation of the verb sum[sʌm], regular     

All forms Indicative Conditional Participles Infinitives

Indicative

Present Indefinite

I sum
you sum
he/she/it sums
we sum
you sum
they sum

Present Continuous

I am summing
you are summing
he/she/it is summing
we are summing
you are summing
they are summing

Present Perfect

I have summed
you have summed
he/she/it has summed
we have summed
you have summed
they have summed

Present Perfect Continuous

I have been summing
you have been summing
he/she/it has been summing
we have been summing
you have been summing
they have been summing

Past Indefinite

I summed
you summed
he/she/it summed
we summed
you summed
they summed

Past Continuous

I was summing
you were summing
he/she/it was summing
we were summing
you were summing
they were summing

Past Perfect

I had summed
you had summed
he/she/it had summed
we had summed
you had summed
they had summed

Past Perfect Continuous

I had been summing
you had been summing
he/she/it had been summing
we had been summing
you had been summing
they had been summing

Future Indefinite

I will sum
you will sum
he/she/it will sum
we will sum
you will sum
they will sum

Future Continuous

I will be summing
you will be summing
he/she/it will be summing
we will be summing
you will be summing
they will be summing

Future Perfect

I will have summed
you will have summed
he/she/it will have summed
we will have summed
you will have summed
they will have summed

Future Perfect Continuous

I will have been summing
you will have been summing
he/she/it will have been summing
we will have been summing
you will have been summing
they will have been summing

Conditional

Conditional Present

I would sum
you would sum
he/she/it would sum
we would sum
you would sum
they would sum

Conditional Present Continuous

I would be summing
you would be summing
he/she/it would be summing
we would be summing
you would be summing
they would be summing

Conditional Perfect

I would have summed
you would have summed
he/she/it would have summed
we would have summed
you would have summed
they would have summed

Conditional Perfect Continuous

I would have been summing
you would have been summing
he/she/it would have been summing
we would have been summing
you would have been summing
they would have been summing

Participles

Present

summing

Past

summed

Infinitives

Infinitives

to sum
to have summed
to be summing
to have been summing
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