she has had to learn.
she had to learn.
Hasibul Alam she has had to learn. This is the present perfect form of the verb have . Hasibul Alam She had to learn.
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Hasibul Alamshe has had to learn.
This is the present perfect form of the verb have.
Hasibul AlamShe had to learn.
This is the simple past form of the verb have.