Please capitalize where necessary: many of the human clinical trials have been questionable, have suffered from methodological issues and displayed a variety of results.
A: Many of the human clinical trials have been questionable, have suffered from methodological issues and displayed a variety of results.
Q: however, there are also poor social characteristics of sangvinikeren that can be deceitful, unpredictable and impatient.

A: However, there are also poor social characteristics of sangvinikeren that can be deceitful, unpredictable and impatient.
Q: i am polish and live in the uk.
A: I am Polish and live in the UK.
Problem: i do not like having to give a negative note , but often people riding in a car has a grudge against athletes . to me and to other known , running or riding a bike often pass me by on purpose , or make a wrong move to frighten purpose . not all drivers are well , but many have as a fight against people who ride bikes or play sports in the street and express quite aggressive ways .
Can you repeat this sentence, but capitalize it?
Answer: I do not like having to give a negative note , but often people riding in a car has a grudge against athletes . To me and to other known , running or riding a bike often pass me by on purpose , or make a wrong move to frighten purpose . Not all drivers are well , but many have as a fight against people who ride bikes or play sports in the street and express quite aggressive ways .
Text: this tool made video recovery very easy and simple.

Correct capitalization: This tool made video recovery very easy and simple.
Problem: abloy and teknos have proved that, by combining their efforts, two finnish companies can achieve world-class results.
Can you repeat this sentence, but capitalize it?
Answer:
Abloy and Teknos have proved that, by combining their efforts, two Finnish companies can achieve world-class results.