buy :
1 I don't buy a ticket
2 she buying a ticket
3 he doesn't buy a ticket
check the passport :
1 we're checking the passport
2 I don't check the passport
3 do you check the passport ?
exchange money :
1 is she exchanging money now ?
2 we exchange money every day
2 do you exchange your money ?
book hotel :
1 we're booking hotel now
2 are they book a hotel?
3thay are booking hotel
بتاج :)