They’re intrusive thoughts and toatations
        
             
        
        
        
I would say that how you can tell if your speech is written clear and concise is by making sure your words aren’t misspelled, you use your grammar properly, you don’t go off topic, getting to the point of what you are taking about in a short manner and then going on to explain, make sure your audience can understand the point you are making easily, and chose wise words, get rid “that” and “there is.” Hope this helps..
        
             
        
        
        
simple present tense	I go
present progressive tense	I am going
present perfect tense	I have gone
present perfect progressive tense	I have been goin
 
        
             
        
        
        
What a search engine is something that you can search things on, Bing is a search engine
        
                    
             
        
        
        
What is this for I’m lost ?