B1-B2: statements about English grammar / vocabulary

The auxuliary verb for the Present Perfect tense is " (a)   " (followed by the past participle).

When we use "going to" in predictions, it usually means that there is some (a)   for it.

"Never", "rarely", and "sometimes" are (a)   of frequency.

"Overcooked", "underestimate", and "supernatural" are words with a (a)   at the beginning.

In the second conditional, we normally use the past simple after "if" and the modal verb (a)   in the main part of the sentence.

Words like "housework", "thunder", and "news" don't usually make the plural form, because they are (a)   .

(a)   adjectives like "boiling", "furious", "insane", and "disgusting" shouldn't be used with "very".

(a)   verbs always look the same in their past simple and past participle form.

The past simple of "learn" is "learned" or (a)   .

Depending on the meaning, the opposite of "lose" is either "find" or (a)   .