Will Be: ero

Level 3

Will be, with the same stem as was.

How It Works

Compare the imperfect erat (he was) with erit (he will be). They differ in one vowel, so read it carefully.

Sum has no -bo. Its future is the stem er- plus the present endings of a third conjugation verb: -o, -is, -it, -imus, -itis, -unt.

Erit and erunt look like erat and erant. The vowel before the last letters decides: i and u are future, and a is past.

Cras in villa ero.
Tomorrow I will be in the house.
Ero is the first person future of sum.
Marcus laetus erit.
Marcus will be happy.
Laetus matches Marcus, and erit is the future.
Eritis in Italia.
You all will be in Italy.
Eritis is the you all form.
Pueri laeti erunt.
The boys will be happy.
Erunt is the they form, and laeti matches pueri.
Ego ero tecum.
I will be with you.
God says this to Moses in Exodus 3:12. Ego adds weight to I, and tecum means with you.

Adding -bo to sum.
Cras laetus erabo.
Cras laetus ero.
Sum has no -bo future. Its first person is ero.
Using the imperfect for something in the future.
Cras pueri laeti erant.
Cras pueri laeti erunt.
Cras points to tomorrow, so the verb needs the future: erunt, not erant.

Tap a pattern to see what it builds on and what it leads to.

Will Be: eroLevel 3

Ero is the future of to be, so sum and the -bo future come first.

Patterns that build on this one.

sum

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