CONCERN - PRESENT SIMPLE
★ i concern
★ you concern
★ he/she/it concerns
★ we concern
★ you concern
★ they concern
CONCERN - PRESENT CONTINUOUS
★ i am concerning
★ you are concerning
★ he/she/it is concerning
★ we are concerning
★you are concerning
★ they are concerning
CONCERN - PRESENT PERFECT
★ i have concerned
★ you have concerned
★ he/she/it has concerned
★ we have concerned
★ you have concerned
★ they have concerned

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CONCENTRATE - PRESENT CONTINUOUS
★ i am concentrating
★ you are concentrating
★ he/she/it is concentrating
★ we are concentrating
★you are concentrating
★ they are concentrating
CONCENTRATE - PRESENT PERFECT
★ i have concentrated
★ you have concentrated
★ he/she/it has concentrated
★ we have concentrated
★ you have concentrated
★ they have concentrated
CONCENTRATE - PRESENT PERFECT CONTINUOUS
★ i have been concentrating
★ you have been concentrating
★ he/she/it has been concentrating
★ we have been concentrating
★ you have been concentrating
★ they have been concentrating

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COMPLETE - PRESENT SIMPLE
★ i complete
★ you complete
★ he/she/it completes
★ we complete
★ you complete
★ they complete
COMPLETE - PRESENT CONTINUOUS
★ i am completing
★ you are completing
★ he/she/it is completing
★ we are completing
★you are completing
★ they are completing
COMPLETE - PRESENT PERFECT
★ i have completed
★ you have completed
★ he/she/it has completed
★ we have completed
★ you have completed
★ they have completed

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COMPLAIN - PRESENT SIMPLE
★ i complain
★ you complain
★ he/she/it complains
★ we complain
★ you complain
★ they complain
COMPLAIN - PRESENT CONTINUOUS
★ i am complaining
★ you are complaining
★ he/she/it is complaining
★ we are complaining
★you are complaining
★ they are complaining
COMPLAIN - PRESENT PERFECT
★ i have complained
★ you have complained
★ he/she/it has complained
★ we have complained
★ you have complained
★ they have complained

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COMPETE - PRESENT SIMPLE
★ i compete
★ you compete
★ he/she/it competes
★ we compete
★ you compete
★ they compete
COMPETE - PRESENT CONTINUOUS
★ i am competing
★ you are competing
★ he/she/it is competing
★ we are competing
★you are competing
★ they are competing
COMPETE - PRESENT PERFECT
★ i have competed
★ you have competed
★ he/she/it has competed
★ we have competed
★ you have competed
★ they have competed

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