First conditional by Various

[I'll go crazy if I don't (1)__________ (2)______________ -- U2]
... But I now I'll go crazy if I don't go (3)__________ tonight

[If I ever leave this world (4)__________ -- FLOGGING MOLLY]
If I ever leave this world alive, (5)________ (6)__________ ya for the things you did in my life
If I (7)________ leave this world alive, (8)________ come back down and sit beside your feet tonight

[If I let you go -- WESTLIFE]
But if I let you go I (9)________ (10)__________ know
What my life would be (11)______________ you close to me

[If you don't know me by now -- SIMPLY RED]
.... If you don't know me by now, you will never (12)__________ know me (no, you won't)

[If you -- (13)__________ BOX]
If you don't (14)________ what you are for me, Don't (15)__________ me alone tonight
If you don't go, I'll let you see (16)________ there is in my heart
If you say "no", I'll feel alone
I need (17)________ sunshine, tonight
If you stay on, I'll (18)________ my all, I'll be (19)________ star
If you love me, if you love me now, I'll be (20)________ star

[Imagine -- JOHN LENNON]
... It's easy if you try

[Natural Mystic -- BOB MARLEY]
... If you listen (21)__________________ now you will hear

[Soul Rebel -- BOB MARLEY]
... If you're not happy, children, then you must be blue

[The (22)__________ cut is the (23)______________ -- CAT STEVENS]
...but if you want, I'll try to (24)________ again

[Wild World -- CAT STEVENS]
... But if you wanna leave, take (25)________ care

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