to concentrate
Regular verb: concentrate - concentrated- concentrated

Indicative 	
Present 	Present continuous 	Preterite 	Preterite continuous 	
 do I concentrate?
do you concentrate?
doeshe concentrate?
do we concentrate?
do you concentrate?
do they concentrate? 	amI concentrating?
areyou concentrating?
ishe concentrating?
arewe concentrating?
areyou concentrating?
arethey concentrating? 	did I concentrate?
did you concentrate?
did he concentrate?
did we concentrate?
did you concentrate?
did they concentrate? 	wasI concentrating?
wereyou concentrating?
washe concentrating?
werewe concentrating?
wereyou concentrating?
werethey concentrating? 	
Present perfect 	Present perfect continuous 	Pluperfect 	Pluperfect continuous 	
 have I concentrated?
have you concentrated?
hashe concentrated?
have we concentrated?
have you concentrated?
have they concentrated? 	 have I been concentrating?
have you been concentrating?
hashe been concentrating?
have we been concentrating?
have you been concentrating?
have they been concentrating? 	had I concentrated?
had you concentrated?
had he concentrated?
had we concentrated?
had you concentrated?
had they concentrated? 	had I been concentrating?
had you been concentrating?
had he been concentrating?
had we been concentrating?
had you been concentrating?
had they been concentrating? 	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
 will I concentrate?
 will you concentrate?
 will he concentrate?
 will we concentrate?
 will you concentrate?
 will they concentrate? 	 will I be concentrating?
 will you be concentrating?
 will he be concentrating?
 will we be concentrating?
 will you be concentrating?
 will they be concentrating? 	 will I have concentrated?
 will you have concentrated?
 will he have concentrated?
 will we have concentrated?
 will you have concentrated?
 will they have concentrated? 	 will I have been concentrating?
 will you have been concentrating?
 will he have been concentrating?
 will we have been concentrating?
 will you have been concentrating?
 will they have been concentrating? 	

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
 would I concentrate?
 would you concentrate?
 would he concentrate?
 would we concentrate?
 would you concentrate?
 would they concentrate? 	 would I be concentrating?
 would you be concentrating?
 would he be concentrating?
 would we be concentrating?
 would you be concentrating?
 would they be concentrating? 	 would I have concentrated?
 would you have concentrated?
 would he have concentrated?
 would we have concentrated?
 would you have concentrated?
 would they have concentrated? 	 would I have been concentrating?
 would you have been concentrating?
 would he have been concentrating?
 would we have been concentrating?
 would you have been concentrating?
 would they have been concentrating? 	

Infinitive 	
Imperative 	
Infinitive 	 	Imperative 	 	
to concentrate 	 	-
-
- 	 	

Participle 	
Present 	Past 	 	 	
concentrating	concentrated