Answer:
It is sentence is grammatically Incorrect.
Explanation:
If we refer back to the sentence in the question, it states that Miramos al barco en el lago. It should be noted that this statement is in Spanish.
For further clarity and for he purpose of confidently deciding if the statement is correct grammatically, we have decided to translate the statement to English.
In English, it simply means or translate to: We look at the boat on the lake.
grammatically speaking, the statement is incorrect as it is neither showing if the statement is a present tense, that is a currently ongoing event or past tense, that is a previously occurred event.