The past tense is concentrated.
Concentrate is a regular verb so you add -ed to make the past tense = concentrated
The past participle is concentrated.
Don't live in the past, don't live in the future, but concentrate on the present...
Remember your ex is your ex for a reason and not worthy of a comparison to your new one. Look to the future, concentrate on your current boyfriend and leave the past in the past.
No Changing the Past, But...Unfortunately, you can not. The past is the past and there is no way you can take back or change anything. You can; however, learn from mistakes and not do what you did wrong in the future. You can also avoid letting past mistakes get you down and discouraged about your present and future. While pasts cannot be changed, futures can! Let the past stay where it belongs...in the past, and concentrate on having a better, brighter future.
No. Concentration is a noun (used as a noun adjunct in 'concentration camp'). The past particple of the verb, concentrated, is used as an adjective.
He finds it hard to concentrate in class.I will concentrate on my work.This orange juice is from concentrate.
I Concentrate on You was created in 1940.
The adjective form is concentrative, more concentrative, most concentrative; another adjective form is the past participle of the verb to concentrate, concentrated.
The preposition "of" is typically used with the verb "concentrate" when talking about the substance or thing on which one is focusing attention or effort. For example, "I need to concentrate of my studies."
She needed to concentrate in order to finish her work on time. The athlete needed to concentrate on improving her technique to win the race. It's important to concentrate during exams to answer the questions accurately.
Mark has had a series of recouring injuries over the past few years and is taking time out to heal and concentrate on his new business.