弱虫じゃないもん。の英語

I'm not a coward.

What a weakling!

bravado

He is no common scoundrel.

having no weak points

not susceptible to

Every man has his weakness

No man is without his foibles

Every man has his blind side.

There is no man but has his weak points.

Everybody has weaknesses.

What a weakling!

He is constitutionally delicate.

weak and ineffectual

I don't complain.

He is far gone.

I am not short-tempered.

I am not perverted.

That isn't cool.

the condition of timidness

He is pretty well gone.

of a condition, breakable and weak

I am not a witch.

I am not a witch.

Here is a go!

Here is a rum go!

What a go!

to be faint-hearted―chicken-hearted―timid―timorous―nervous

to be timorous―nervous―weak-hearted―faint-hearted

I'm not a coward.