Поставить в правильное форму, present or future forms if you 1) want (want) to travel long distances on your bicycle, you must learn how to mend a puncture. as soon as your tyre 2) becomes (become) flat, get off the bike or you 3) will (damage) the wheel. then turn the bicycle upside down. once it 4) (be) in position, remove the tyre using tyre-levers or, if you 5) have (have) nothing else, use spoons. when the tyre 6) (be) off, pump up the inner-tube. put it in some water and turn it until you 7) (see) bubbles coming from it. this is your puncture. before you 8) (apply) the patch, you must clean and dry the area around the hole. after this you 9) (put) glue around the hole and wait until it 10) (dry) a little. then select a suitably sized patch. stick the patch over the hole and don't forget to put some chalk over it. unless you do this, the inner-tube 11) (stick) to the inside of the tyre. replace the tube, pump up the tyre and ride away. i don't know if you 12) (be able to) remember all this, but it's worth trying because you never know when it 13) (be) useful to you.