First Conditional

will have

am having

have

 has

won't

am

 can't

don't

doesn't / won't

won't / don't

won't / doesn't

isn't / won't

 If you won't try harder, you will fail.

If it is sunny, I will go swimming.

If the game is good, I am playing it.

You are late if you won't leave now.

 If her mother be happy, Jane will passes her exams.

If Jane passes her exams, her mother will be happy.

If Jane will be happy, her mother passes her exams.

If Jane will passes her exams, her mother are happy.

will become

are becoming

 become

became

won't feel

don't feel

felt

am not feel

are going / will take 

will go / take

go / will take

won't go / don't take

"will buy" must be "buy"

"have" must be "will have"

"have" must be "has"

"will buy" must be "buys" 

if I will finish my work on time

if I finish my work on time

if I am finish my work on time

if I won't finish my work

if I cook breakfast

if I doesn't buy some food for supper

 if I don't do my homework

if I listen too much music and skip lessons

If she has time, she will help her to pick up rubbish.

If she have time, she won't help her to pick up rubbish.

If she doesn't have time, she will help her to pick up rubbish.

If she don't have time, she will help her to pick up rubbish.