mentir

Il sait mentir.

He knows how to tell lies.

Arrête de mentir.

Stop lying.

Inutile de mentir.

There's no need to lie.

C'est mal de mentir.

It's wrong to lie.

J'ai dû mentir à nouveau.

I had to lie again.

Il me soupçonne de mentir.

He suspects me of telling a lie.

Il ne faut pas se mentir : l’entreprise s’annonce difficile.

Let's not kid ourselves: this promises to be a difficult undertaking.

Je n’aime pas mentir.

I don't like to lie.

Je ne veux plus mentir.

I don't want to lie any more.

Ils m'ont forcé à mentir.

They forced me to lie.

Nous le suspectâmes de mentir.

We suspected him of lying.

Il semble mentir.

He seems to be lying.