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                                                                 EXHIBIT (11)(a)








                                November 30, 1998



AIM Investment Funds
50 California Street, 27th Floor
San Francisco, California  94111

Ladies and Gentlemen:

         You have requested our opinion, as counsel to AIM Investment Funds
("Trust"), as to certain matters regarding the issuance of Shares of AIM
Developing Markets Fund (the "Acquiring Portfolio"), a series of Trust, in
connection with the reorganization of AIM Emerging Markets Fund (the "Acquired
Portfolio"), a series of Trust, into the Acquiring Portfolio, as provided for in
the Plan of Reorganization and Termination, effective as of November 30, 1998
(the "Plan"). The Plan provides for the Acquired Portfolio to transfer all of
its assets to the Acquiring Portfolio in exchange solely for the issuance of the
Shares and the Acquiring Portfolio's assumption of all of the liabilities of the
Acquired Portfolio. (As used in this letter, the term "Shares" means the Class
A, Class B, and Advisor Class shares of beneficial interest in the Acquiring
Portfolio.)

         As such counsel, we have examined certified or other copies, believed
by us to be genuine, of Trust's Agreement and Declaration of Trust dated as of
May 7, 1998 ("Agreement"), and Bylaws and such other documents relating to its
organization and operation as we have deemed relevant to our opinion, as set
forth herein. Our opinion is limited to the laws and facts in existence on the
date hereof, and it is further limited to the laws (other than the conflict of
law rules) of the State of Delaware that in our experience are normally
applicable to the issuance of shares of beneficial interest by business trusts
and to the Securities Act of 1933 ("1933 Act"), the Investment Company Act of
1940 ("1940 Act") and the regulations of the Securities and Exchange Commission
("SEC") thereunder. With respect to matters governed by the laws of the State of
Delaware (excluding the securities laws thereof), we have relied solely on the
opinion of Potter Anderson & Corroon, LLP, Delaware counsel to Trust, an
executed copy of which is appended hereto as Exhibit A.



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AIM Investment Funds
November 30, 1998
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         Based on the foregoing, we are of the opinion that Trust has been duly
organized as a business trust under the laws of the State of Delaware and is
validly existing thereunder; that the issuance of the Shares has been duly
authorized by Trust; and that, when sold in accordance with the terms
contemplated by Trust's registration statement on Form N-14 (File No. 33-19338)
("Registration Statement"), including receipt by the Acquiring Portfolio of full
payment for the Shares and compliance with the 1933 Act and the 1940 Act, the
Shares will have been legally issued, fully paid, and non-assessable.

         We note, however, that Trust is an entity of the type commonly known as
a "Delaware business trust." The Delaware Business Trust Act, 12 Del. C. ss.
3801 et seq. ("Delaware Act"), provides that shareholders of a Delaware business
trust are entitled to the same limitation of personal liability extended to
stockholders of a Delaware corporation. Thus, under Delaware law, shareholders
will not be personally liable for the obligations of Trust. This limitation of
liability may not be absolute, however, as it is possible that a non-Delaware
court would not uphold this provision of the Delaware Act.

         Consistent with the Delaware Act, the Agreement includes an express
disclaimer of shareholder liability for the debts, liabilities, obligations, and
expenses incurred by, contracted for, or otherwise existing with respect to
Trust or any series (or class) thereof. The Agreement also requires that every
note, bond, contract, or other undertaking issued by or on behalf of Trust or
its trustees relating to Trust or to any series include a recitation limiting
the obligation represented thereby to Trust and its assets or to one or more
series and the assets belonging thereto (but provides that the omission of such
a recitation shall not operate to bind any shareholder or trustee of Trust).
Furthermore, the Agreement states that the debts, liabilities, obligations, and
expenses incurred by, contracted for, or otherwise existing with respect to a
particular series shall be enforceable against the assets of such series only,
and not against the assets of Trust generally or the assets belonging to any
other series. Finally, the Agreement further provides (1) for indemnification
from the assets belonging to the applicable series (or allocable to the
applicable class) for all loss and expense of any shareholder held personally
liable for the obligations of Trust or any series (or class) by virtue of
ownership of Shares of Trust or such series (or class), and (2) for Trust, on
behalf of the affected series (or class), to assume the defense of any claim
against the shareholder for any act or obligation of that series (or class).
Thus, the risk of a shareholder's incurring financial loss because of
shareholder liability is limited to circumstances in which (a) a court refused
to apply Delaware law or otherwise failed to give full effect to the Agreement
or contractual provisions limiting shareholder liability and (b) Trust was
unable to meet its obligations.



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AIM Investment Funds
November 30, 1998
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         We hereby consent to this opinion accompanying the Registration
Statement when it is filed with the SEC and to the reference to our firm in the
Registration Statement.


                                       Very truly yours,

                                       KIRKPATRICK & LOCKHART LLP





                                       By: /s/ R. DARRELL MOUNTS
                                           R. Darrell Mounts