The verb "to be" is very confusing for me. I am not a native speaker and I want to use it correctly. I know that "is, am, are, was and were" are diffetrent forms of the verb "to be". I know how to use these forms, when building up a sentence. I am confused in cases when "to be" is used in its basic (infinitive) form as shown in the example below.
"This will continue to be such in the future".
From the context, I can understand the meaning. My question is when I should use "to be" in its infinitive form like in the example above. I searched for various online resources but all of them are talking only about "is, am, are, was and were" forms. Could you please tell me what resource I should try yet?