It’ll be a bit harder now because he used to the bottle feed . But keep trying . Set a specific time each day and give him every day at the same time . This might work . But correct latching is very important .

I thought since he is teething he might take

Its difficult now. You can try ... After a month you can introduce liquids..

It will be harder now anchal because you should have put your baby to the llatching initially sometimes as well if you totally kept him on bottle feed you can still try but baby you will need to give time to the baby try to introduce your nipple in afternoon feeds for morning feeds