#english_language 

After **appear** (=seems) and **seem** we sometimes use **to be** before an adjective:
> He seems/appear (to be) nervous

## To be is necessary
- We include **to be** before the adjectives **alive**, **alone**, **asleep**, **awake** (AAAA)
	> I didn't go in because she appeared to be asleep
- before a noun we include **to be** when the noun tells us who or what the subject is
	> He went throught what appeared to be a locked door
- before gerund forms
	> It seems to be growing rapidly
## To be is not necessary
-  before a noun we include **to be** when the noun tells us who or what the subject is when we give our opinion of the person or thing in the subject
	> She seems (to be) a very efficient salesperson