grammar help needed pls

[tjj]

hi again,
help would be appreciated with the following ones below:

conditional tenses

1) a) If she meet him, she will tell him the news.
b) If she meets him, she will tell him the news.

which is correct, a or b?
How does one correctly know whether it should be meet or meets?
What is the grammar rule behind it?

2) a) I should go at once, if I have been with you.
b) I should go at once, if I am with you.
a or b? reason?

3) a) If you had been speaking english here, no one would understand.
b) If you speak english here, no one would understand.
a or b?

4) a) if the bridge had broken down, we would fall in the river.
b) if the bridge breaks down, we would fall in the river.
a or b?

Idioms
1) ..............., Tim, I hope 2 c u soon (good bye)
2) Fergus is ....................... (careful in small matters but careless in larger matters)

many thanks
have a pleasant day.

ted

[Humble]

Originally Posted by tjj

hi again,
help would be appreciated with the following ones below:

conditional tenses

1) a) If she meet him, she will tell him the news. Wrong.
b) If she meets him, she will tell him the news. OK. Because she-the 3rd person singular- requires verbs with -s ending in the Present Simple.

which is correct, a or b?
How does one correctly know whether it should be meet or meets?
What is the grammar rule behind it?

2) a) I should go at once, if I have been with you. Not exactly wrong but very odd.
b) I should go at once, if I am with you. Better but makes one wonder what the context could be.
a or b? reason?

3) a) If you had been speaking english here, no one would understand. Wrong. If you had spoken English no one would have understood.
b) If you speak english here, no one would understand.
a or b? Wrong. If you speak..., no one will understand. or If you spoke..., no one would...

4) a) if the bridge had broken down, we would fall in the river.Wrong. If the bridge had broken..., we would have fallen...
b) if the bridge breaks down, we would fall in the river.Wrong. If the bridge breaks down, we will fall...
a or b?
Sorry, can't help with the rest.
Idioms
1) ..............., Tim, I hope 2 c u soon (good bye)
2) Fergus is ....................... (careful in small matters but careless in larger matters)

many thanks
have a pleasant day.

ted

Cheers.