Fourier transformation of a heaviside function

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I have a function

f(t) = 2t(H(t)-H(t-2))

and I want to transform it with fourier transformation, but I'm not sure how heaviside acts at least when there are no given limits to the function.

I do know that I'll get there using

$$f_{transform} = \int_{-\infty}^\infty2t(H(t)-H(t-2))e^{-j\omega t}dt $$

but beyond that, I am not sure how to do it by hand.