English grammar
I think, I don't think so, I'm sure
Give an opinion about what happened.
From the scene I think it was Tomás
In short
Give an opinion with I think + sentence. Disagree with I don't think so; for a strong belief, say I'm sure.
Your turn
Which one goes with disagreeing in a few words?
Options: I don't think so (NOT "I think that no") · I think it was Tomás · I'm sure (that) you know something (NOT "I sure")
Show answer
disagreeing in a few words → I don't think so (NOT "I think that no")
How it works
I think + a normal sentence gives an opinion, and that is optional: I think it was Tomás.
Your turn
Pick the word that fits the line.
(blank) he's innocent, Doña Elena.
Options: I thinking · I think · I'm think
Show answer
I think he's innocent, Doña Elena.
Creo que es inocente, Doña Elena.
Good to know
To disagree in a few words, say I don't think so, NOT "I think that no". For a strong belief, say I'm sure + sentence: I'm sure you know something.
Good to know
Maybe usually goes at the start.
an opinion I think it was Tomás
Elena
Nuria, listen. I think it was Tomás.
Nuria, escucha. Creo que fue Tomás.
Your turn
What fills the gap?
Nuria, listen. (blank).
Options: I'm sure you know something · I think it was Tomás · I don't think so
Show answer
Elena
Nuria, listen. I think it was Tomás.
Nuria, escucha. Creo que fue Tomás.
disagreeing in a few words I don't think so (NOT "I think that no")
Nuria
Tomás? I don't think so. Why him?
¿Tomás? No creo. ¿Por qué él?
Your turn
What fills the gap?
Tomás? (blank). Why him?
Options: I don't think so · I think it was Tomás · I'm sure you know something
Show answer
Nuria
Tomás? I don't think so. Why him?
¿Tomás? No creo. ¿Por qué él?
a strong belief I'm sure (that) you know something (NOT "I sure")
Elena
Tomás, I'm sure you know something.
Tomás, seguro que tú sabes algo.
Your turn
What fills the gap?
Tomás, (blank).
Options: I don't think so · I'm sure you know something · I think it was Tomás
Show answer
Elena
Tomás, I'm sure you know something.
Tomás, seguro que tú sabes algo.
not sure maybe
Your turn
What goes with maybe?
Options: an opinion · disagreeing in a few words · not sure
Show answer
maybe → not sure
Practise it in the story
Meet this rule inside a short animated scene. Answer as it plays, then say the lines yourself.
Practise free in the appSee all forms
| an opinion | I think it was Tomás |
|---|---|
| disagreeing in a few words | I don't think so (NOT "I think that no") |
| a strong belief | I'm sure (that) you know something (NOT "I sure") |
| not sure | maybe |
More lines from the story
- NuriaI think he's innocent, Doña Elena.Creo que es inocente, Doña Elena.
- TomásI'm not guilty. Someone stole my mangoes!Yo no soy culpable. ¡A mí me robaron los mangos!
- TomásMe? Not at all! I was in bed.¿Yo? ¡Para nada! Yo estaba en la cama.